1- Make “Guest Checkout” the Most Prominent Option (65% Don’t)
2- Avoid Overly Complex Password-Creation Requirements (80% Don’t)
3- Use “Delivery Date” Instead of “Delivery Speed” (36% Don’t)
4- Show the Cutoff Time as a Countdown (96% Don’t)
5- Present “Store Pickup” Within the Shipping Selector Interface (63% Don’t)
6- Make It Easy to Compare “Store Pickup” to Shipping Options (75% Don’t)
7- Use Luhn Validation (53% Don’t)
8- Autoformat Spaces in the “Credit Card Number” Field (40% Don’t)
9- Match the Credit Card Field Sequence to the Physical Card Sequence (38% Don’t)
10- Correctly Format the “Expiration Date” Field (50% Don’t)
11- Allow Users to Edit Data Directly at the Review Step (80% Don’t)
12- Provide Separate “Edit” Links for All Distinct Information Groups (49% Don’t)
13- Avoid Jargon in the Checkout Microscopy (45% Don’t)
14- Mark Both Required and Optional Fields Explicitly (85% Don’t)
15- Support the “Back” Button for Navigating To Any Previous Checkout View (57% Don’t)
16- Auto-Update and Highlight Changes Rather Than Using “Apply” Buttons (82% Don’t)
17- Choose the Right Interface Type for Optional Inputs (81% Don’t)
18- Use Localized Input Masks for Restricted Inputs (56% Don’t)
