I have buyer's remorse on a bag I haven't even gotten yet! I got all carried away with the Neiman Marcus 100th anniversary Balenciaga bag and called a store a couple thousand miles away to get one. I've been waiting for a couple of weeks for it now, and am finding that I don't actually want it anymore. I don't like giant hardware, I don't think I really need a blue bag...basically, I have no idea why I bought it in the first place other than reading other people's posts about it and feeling bored.
Fortunately, I can at least send the silly thing back as soon as I receive it and get a full refund.
Oh kimberf, I have done the same thing and then just hated myself for it. You are definitely not alone! Just relax and remember you can return it.