I guess I'm a fickle customer. I buy things when I'm not sure if I want them (especially clothes and shoes) but I have no trouble taking them back to the store

I guess I'm a fickle customer. I buy things when I'm not sure if I want them (especially clothes and shoes) but I have no trouble taking them back to the store and saying I changed my mind. I feel I'm taking a risk and if it works out the store benefits from it. I end up spending a lot in stores that follow this and avoid others that have given me hassle. I spend a lot on amazon for the same reason. EDIT - I'd like to add there is very little rational or reasonable going on in the head of most shoppers!