[periya]

This exact reason has helped me stop frivolous purchases as soon as I discontinued my prime membership.

I hate paying for shipping and most of the time the items in my cart are < $25 at which point I ask myself if I really need this item. If I really need it, I go to the target/Wal-Mart near my place since they always price match. Not renewing my prime membership has been by very liberating!