Originally Posted by Twotone
I frequently travel to Europe and Asia for extended business trips (a month or more) with several suits. As others have mentioned, properly folding you suits is the first step to minimize wrinkling. There are a lot of posts regarding how to fold, so I won't repeat them. Do not use suit-carriers -- they are the worst. I only travel with hard-side luggage (Carlton) for extra protection and security (harder to cut through). No need for a travel steamer -- run hot water in the shower, close the door and hang your suit and trousers (fully extended) from the shower curtain rod -- works like a charm.
I only travel with dark suits -- navy, charcoal gray, dark blue pinstripe, etc. which even if slightly wrinkled does not show as much as lighter colors. Some fabrics, colors and patterns (especially Prince of Wales or Glen Plaid) look wrinkled more than others (solids or faint window pane). My travel suits for extended trips are not my most expensive nor are they superfine 120+. Sometimes less is more.
This is what I do, and it works very well. My carry-on for short trips is only 18" yet, I pack a suit in it. I hang it in the closet upon arrival (no need for steaming) and it's ready for wear, without wrinkles, the next morning. I've used garment carriers in the past without success.