About
Hejia Zhang is Editor-in-Chief of ShopBack's editorial team, covering consumer pricing, sale cycles, and retailer comparisons across Australia, Singapore, and the United States.
The reporting draws on ShopBack's internal merchant pricing data across thousands of retailers in the three markets, paired with primary sources: retailers' own sale histories, official promotional pages, and government statistics from the ABS, SingStat, and the BLS.
Areas of focus
Sale-cycle timing. Tracking when sales genuinely cut into margin versus when the markdown is theatre. The recurring annual cycle includes EOFY (June, AU), the Great Singapore Sale (June through August, SG), Singles' Day on November 11 (SG and increasingly AU), Black Friday and Cyber Monday (US, with growing AU and SG participation), Boxing Day (December 26, AU), and the major US weekends around Memorial Day, July 4th, and Labor Day.
Cross-retailer pricing. Same SKU compared across the field. In Australia that means Amazon AU, JB Hi-Fi, Harvey Norman, Officeworks, Big W, Kmart, plus Coles and Woolworths for groceries. In Singapore: Lazada, Shopee, Courts, Best Denki, FairPrice, Cold Storage. In the United States: Amazon, Walmart, Target, Best Buy, Costco.
Category playbooks. Running coverage on sneakers, beauty and skincare, consumer electronics, baby gear, travel, and groceries. Each playbook covers what to pay, when to pay it, and where the resale or open-box market sits twelve months on.
Cashback as a layer. How stacked cashback compares against credit-card rewards, store loyalty programs, and coupon stacking. The rules differ meaningfully across the three markets, so the coverage is written region by region rather than one size fits all.
Editorial standards
Every price reference in a Hejia Zhang article traces back to a primary source. That means the retailer's own site, the official sale page, government statistics from the ABS, SingStat, or the BLS, or ShopBack's internal merchant pricing data. It does not mean coupon aggregators, deal-listing sites, or third-party scrapers, none of which are cited.
For category playbooks (sneakers, beauty, electronics, baby gear), observed prices are checked against the actual in-cart price at the retailer during the article's coverage window, not the advertised banner. Travel and grocery pieces are verified against the booking flow or the basket total. Every number gets a date attached. The date_modified field at the top of each article reflects when those numbers were last re-verified, which happens at minimum every quarter.
Recommendations are conditional. "Best buy" is always stated for a particular reader under particular conditions, with the trade-offs at the top of the piece so readers can self-select. Errors get corrected in-article, with the date and the nature of the change noted at the top.
ShopBack receives a commission when readers complete a purchase through a cashback link. This commission does not vary by editorial coverage, and merchants cannot pay for inclusion, ranking, or favourable language. Where a merchant pays a notably higher commission than its peers on a comparable product, the conflict is disclosed inline. Editorial picks are not sold.
Get in touch
Tips, corrections, or merchant pricing data I should look at: hejia.zhang@shopback.com
Corrections are logged in-article with the date and what changed.
Editorial team
Hejia Zhang leads ShopBack's shopping editorial team and writes cross-vertical pieces on sale-cycle timing, cross-retailer pricing and the cashback layer. The other byline on the team:
- Garry Shi, Cashback Expert — ShopBack product expertise covering cashback, the wallet, ShopBack PayLater, stacking, and member features
Hejia Zhang and Garry cover complementary surfaces. Hejia Zhang is the outside-in editor (what to buy, when, where the cashback layer sits in a wider purchase decision); Garry is the inside-out editor (how the ShopBack product itself works once a shopper is using it).
Brands, work with us: garry@shopback.com.
Articles by Hejia Zhang
Late July 2026 US Weekend Shopping: Real Deals at Target, Walmart, and Amazon (Jul 25 to 27)
Late-July weekend across Target, Walmart, Amazon, Best Buy, and Kohl's. Which categories are on true clearance (apparel tail, small appliances), which are back-to-school teasers, and which are marketing skins pretending to be deals.
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College Dorm Essentials 2026: The Move-In Shopping List for Target, Walmart, and Amazon
The dorm move-in shopping list for August 2026, broken by category with SB partner retailers. Cover bedding, storage, small appliances, desk, bath, laundry, decor, and tech in one pass so you buy once.
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US Back-to-School 2026: When to Buy What, Week by Week (Aug 5 to 25)
A week-by-week back-to-school buying calendar for August 5 to 25, 2026. Which category drops price hardest each week across Amazon, Target, Walmart, Best Buy, Kohl's, Old Navy, Athleta, and Macy's, plus where cashback stacks on top.
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Verizon vs AT&T vs T-Mobile vs Mint Mobile US 2026: Best Carrier
For US shoppers in 2026, T-Mobile has the best price-to-feature ratio on postpaid family plans (Go5G Next + Netflix/Apple TV+), Verizon still wins on rural and stadium coverage, AT&T leads on fiber-and-mobile household bundles, and Mint Mobile (a T-Mobile MVNO) is the cheapest credible option at $15 to $30 per month for light users. Most households overpay by $30 to $60 a month versus their actual usage.
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US Back-to-School 2026 Sale Calendar: When Laptops, Dorm Gear, Kids' Clothes, and Supplies Actually Hit Their Deepest Cuts
The full US 2026 back-to-school sale calendar. Laptops peak the last week of July and mid-August. Kids' clothes at Old Navy, Gap, and Target discount hardest August 4 to 18. Dorm gear at Target Deal Days, Bed Bath, and Walmart clears late July. Supplies at Staples and Target hit their real cuts August 2 to 10.
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Target Circle 360 vs Walmart Plus vs Amazon Prime US 2026
For US shoppers in 2026, Amazon Prime ($139/yr) is the broadest entertainment and shipping bundle, Walmart+ ($98/yr) is the cheapest grocery-delivery membership with the strongest gas perk, and Target Circle 360 ($99/yr) is the right pick if Target is your primary store. Most households are better off with one membership, not all three.
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NordVPN Annual vs Monthly for US Streaming and Privacy in 2026: Which Actually Costs Less?
For US users committed to using a VPN beyond a single trip, NordVPN's annual or 2-year plans typically run 50-70% cheaper per month than the rolling monthly plan. Monthly only makes sense for a short trip, a one-off privacy need, or genuine uncertainty about whether you'll keep the service.
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Is the Amex Platinum Still Worth $895 in 2026? A Credit-by-Credit Breakdown
Yes, but only for a narrow profile: travelers who fly internationally 3+ times a year, actually use the Centurion Lounge network, and live in or near a city with an Equinox, a lululemon, and an Uber footprint. For everyone else, the Chase Sapphire Reserve at $795 or the Capital One Venture X at $395 returns more usable value per dollar of fee.
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Best Time to Buy a Car in the US 2026: Windows Remaining
For US car buyers in 2026, industry analyses point to the end of the year, especially the last week of December, as the deepest single discount window, when year-end clearance on outgoing model years, manufacturer cash, and dealer annual quota pressure all stack (Edmunds reports December carries the year's highest average discount off MSRP). Labor Day weekend is widely cited as the biggest single holiday sale event, and the last few days of any month carry extra dealer quota pressure. Note: the federal $7,500 Clean Vehicle Credit was repealed for vehicles acquired after September 30, 2025, so it is no longer available to time an EV purchase around in 2026.
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Amazon Prime Annual vs Monthly US 2026: When Is It Worth the Spend?
Annual Prime is worth it for most US suburban households ordering 1.5+ packages per month, watching Prime Video as a primary streamer, shopping Whole Foods or Fresh weekly, or using Subscribe & Save for staples. Monthly Prime only makes sense for short-term spikes like holidays or moves.
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