I swear I really am an adult. But, I'm a lazy adult. So... when you buy new curtains or things like that, do you pre-wash them before hanging? If so, do you use detergent or just put them through with no soap, since they aren't technically 'dirty'?

I'm adding some trim to some Ikea curtains I bought so I think In need to wash first in case they shrink, right?

My usual is to just hang things straight out of the package, wrinkles and all, and wait for gravity to pull them out.