Blog
Reseller craft, honest math.
Guides and teardowns for people who flip, store, list, and ship real inventory. No fluff.
GuideApril 17, 2026 · 4 min read
Why resellers outgrow spreadsheets (and what to use instead)
A working spreadsheet is the first step. Losing track of 50 items is the second. Here's when to switch, and what breaks if you wait.
GuideApril 17, 2026 · 3 min read
What you actually take home on eBay in 2026
Final value fee, promoted listings, shipping, insertion fees. A worked example on a $40 sale — and why sub-$20 items quietly lose you money.
OpinionApril 18, 2026 · 4 min read
Poshmark vs eBay: which actually pays more on a $40 sale?
Poshmark's 20% feels worse than eBay's 13% — but eBay adds shipping, per-order fees, and promoted listings. A side-by-side on the same item.
OpinionApril 18, 2026 · 5 min read
Your real profit margin is probably 12%, not 40%
COGS isn't just the price you paid. Mileage, supplies, shipping write-offs, returns, platform fees — here's what's missing from most resellers' math.