I never leave home without my Downy Wrinkle Release. It's the best stuff since sliced bread.
As I unpack, almost everything gets a touch up with the stuff. It won't take out a hard crease, but those little wrinkles it does wonders for. Most of all you don't have to tie up the bathroom, while steaming.
Also it's cheap enough that at the end of the trip, I give any leftovers to housekeeping. That space is used for my shopping.