Best way to travel with a blazer that your not wearing

Hi, so I am flying to a wedding in Phoenix this weekend and I have never had to fly with a suit, blazer, etc. I am just going to do the blazer khakis combo for the wedding, and am trying to figure out the best way to keep the blazer looking nice. I know a lot of people here may just say wear the blazer when I fly, while I am a NB fan, I am not the type of person to do that lol. Just fold as minimally as possible and put in suit case? Steam when I get there? Does the hot shower trick actually work?