Why do woeman bring back so much stuff from a store?

I work in Retail. I watch lady's every day buy many items, clothes (never try on) other Misl. items, and in a few days they are bringing them back? Why? There are dressing rooms, and this is something that Men do not do! Gas is at least $3.00 a Gallon and some times they bring thing back that are under $5.00. That means they actually got nothing back on the item because they burned it up in Gas getting there. As a Man I would through away anything that was under $10.00 it just isn't worth my time and gas and ware and tare on my car, not counting that could be the day I was in a accident. To me it just isn't worth it. I died for 4 1/2 minutes in 2003 and I know how important it is to spend each minute of the day, since you might not wake up tomorrow.