I have a B&R carry on garment bag that works well. I can get 3 days out of it if I take the essentials.

Wrinkles are a part of travel life. Get your stuff hung as quickly as possible. If it is a humid climate you travel to most wrinkles fall out pretty well.

Dry climate I run the shower on hot for 5 minutes, hang my suits for about 15 minutes with the door closed. Pull them out and into the closet.