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
Crocs vs Canvas Sneakers for US Healthcare and Hospitality Workers in 2026: Which Lasts Longer Per Dollar?
For US healthcare and hospitality workers pulling 10–12 hour shifts in 2026, Crocs typically win on cost-per-wear. The Bistro and On The Clock models last 8–18 months under heavy use, while canvas sneakers degrade faster from repeated washing and spills.
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Disney World Annual Pass 2026: Is Incredi-Pass Worth It?
A Disney Annual Pass pays for itself at 2 visits only if both trips include 4+ park days each. For shorter visits, the math favours per-trip tickets. Here's how to run the numbers for your situation.
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Frontier vs Southwest 2026: All-In Fee Comparison After May 2025
Frontier's base fares are still typically $20 to $50 cheaper than Southwest, and Southwest ended its Bags Fly Free policy on 28 May 2025, so the first checked bag now costs $35 on Southwest for most fares. Carry-on bags remain free on Southwest. For travellers with a carry-on and a seat preference, Southwest is still equal or cheaper all-in; for travellers who now need to check a bag, the comparison is closer than it used to be.
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Carry-On Only vs Checked Bags: Real Cost Difference Across US Airlines (2026)
Checked bags cost $35–$45 each way on major US carriers, adding $70–$90 per round-trip. For a family of 4 with one checked bag each, that's $280–$360 extra — enough to justify switching airlines or packing smarter.
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Best Time to Book Domestic Flights for the Cheapest Fares: What Data Shows (2026)
Book domestic US flights 3 to 8 weeks before departure for the lowest fares. Tuesday and Wednesday departures are 10 to 20% cheaper than Friday and Sunday. Stack timing with cashback on Expedia, Kayak, or Priceline through ShopBack to compound savings.
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How to Use Credit Card Points for Free Flights Within the US (2026 Guide)
You can book a free domestic US flight for 7,500–25,000 points depending on the program. The fastest routes to a free flight are Southwest Rapid Rewards (low threshold), Chase Ultimate Rewards (flexible), and Capital One Miles (simple cash-equivalent).
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Road Trip vs Flying US Domestic 2026: Full Cost Comparison
Driving beats flying on total cost for trips under 500 miles or groups of 3+. Flying wins for solo travellers and distances over 700 miles. Here's the exact math.
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Airbnb vs Hotel in Las Vegas: Which Actually Saves You More in 2026?
Hotels win in Las Vegas for almost everyone. The Strip's hotel room rates ($60–$150/night on weekdays) are cheaper than comparable Airbnbs once resort fees are stripped out — and Airbnbs come with their own fee surprises.
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The Real 2026 USD Cost of a Disney World Family Trip After Genie+ Became Lightning Lane
A 5-day Disney World trip for a family of 4 costs $6,500, $10,500 in 2026 depending on resort tier, park tickets, and how aggressively you manage food and extras.
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TSA PreCheck vs Global Entry: Which Is Worth Paying For in 2026?
Global Entry ($100) includes TSA PreCheck and is the better value for anyone who travels internationally even once every 5 years. TSA PreCheck ($85) is only the right choice if you have no passport or never leave the US.
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