At consumer scale, a small friction is a very large number.
Retail and grocery: search, basket, checkout, substitutions, delivery windows. Millions of ordinary decisions, most of them made one-handed.
- Consumer
- Amazon · Safeway
- Within 2013 — 2019
- Product & UX leadership
Tap the substitution preference on any item. Asked once, remembered for the next shop.
The screens.
The calls I made.
Design for the thumb and the distracted.
The primary action is reachable, obvious and forgiving. Nobody shops with both hands and full attention.
Let people state intent once.
Substitution and delivery preferences are asked once, remembered, and easy to change at the moment they matter.
Measure the basket, not the click.
A screen wins when the order is right and arrives as expected, not when a button gets tapped more.
Scale punishes cleverness.
Patterns have to survive every locale, device and edge case. Boring and consistent beats novel and fragile.