customer "order preview" before submitting order
when a customer is done with adding products to the cart and fills in the address/CC/shipping/etc etc data --- LET them preview the information BEFORE submitting the order. This will cut down on errors/mistakes by the customer and save TIME and energy by store owner having to correct it manually. In general, this is a HUGE win-win and only adds one small step in the order process. Note: i sure some people will not want it, so it needs an on/off switch in the cart settings.
Certain Way Productions Inc. commented
On International orders show customer that an entry is required in "state/province" box. Currently these orders are declined if the box is blank, yet the customer isn't told why.