One of the few times I ever returned a gift is when a co-worker, for my birthday, gave me the EXACT SAME blouse I happened to be wearing the day she brought in my present--same color, style, everything. It was pretty hilarious. With Christmas gifts, even if I don't particularly like something I typically just donate it to Goodwill after a while rather than return it to the store.
I typically just donate it to Goodwill