3" to 4" heels can be plenty comfortable. It really has more to do with the shoes than the height. I have some 3.5" heels that are the cutest shoes I've ever seen, but they're so uncomfortable I can barely stand in them for 10 minutes.
Last night I was wearing 4" heels from 6:00pm till 4:30am, though, and they really didn't hurt my feet at all, and I went several places and walked a few blocks down the sidewalk. And those were some $20 Payless shoes:
http://www.payless.com/Catalog/Produ...ItemCode=60341
They're actually the cheapest shoes I've got, but they fit well.
You should really practice walking around on a hard floor for awhile ... but honestly, if you're just going one place -- to a Halloween party where you'll probably be able to sit when you want -- I don't think it's going to be a big deal.
