Personally, I do accept returns for change of mind as I feel it's part of the service for fashion items, where people can get a lot more information from being able to touch / try things on etc; but in saying that, it's completely up to you whether you want to or if it's feasible for your store. 

I think that once you have decided on a return policy, the best thing to do is be relatively firm about it when dealing with customers, with the option to be flexible according to circumstances. You shouldn't be scared to point out your own TOS to customers, who really should be responsible for reading and understanding those terms when they buy. I've had to do it a couple of times, and I usually just keep it quite simple and try to offer some alternative options so that contacting me about whatever issue doesn't feel like a complete waste of time, if you know what I mean. (For example, offer the use of your description and photos if they want to onsell it).