You don't say where and when you are diving, of course that makes a huge difference.
I dive a 3/2 shortie on my Fla Keys and Carribean trips, I have a son who uses a 5mm full suit and another that dives in a dive skin. The season, location and your tolerence for cold are the deciding factors. The number of dives can also make a difference. If you are doing four or more with inadequate protection you will start getting chilled.
I usually just hang the suit on a balcony rail or chair outside and let them dry as much as I can. Worst case hang them in the shower. They may still be damp, but not too much to pack. I usually have a couple of large trash bags in my dive gear bag to segregate any wet items.