So your buddy comes over for Halloween and brings a costume and wants you to wear it.... He takes it back and next year, another friend is wearing the same costumes....
Fucken gross....
Its like you wearing your friends underwear.... even if if was washed......
Ever see those suited mascots at games... If one person uses that suit and sweats in it (and they are gonna sweat), the suit should be dry cleaned, but the suit is rarely cleaned. After a couple of users the suit just stinks on the inside. Those suits are very unhygienic....
So if you are going to get a costume for the SP, you give it to her unwrapped or better yet take her clothes shopping....She is gonna be much better at colour matching outfits to each other. Look on SP website for what she wants. If you have something particular in mind, ask her about it. She might already have a costume for herself or give you her size.
I like the Spirit of Halloween stores. Cheap costumes (nurses, doctors, vampires, princesses, etc) compared to Lingerie stores....
If it is you wearing the clothing, just make sure its clean and been dry cleaned (or however you get the material cleaned).
If you seen an SP before, and you want her to get something, get gift cards to that stores she likes.