When I was working and living aboard, I kept the good suit and clothes in the suburban, as my boat was older and had a smell that invaded everything, and changed in the bath house. Your conference room would be ideal. Now that I retired and have a less smelly boat, I live in swim trunks and wicking tshirts. One nice pair of boat shoes, one ratty pair of boat shoes and a decent pair of sneakers (we walk and cycle a lot). Foulies become the jacket/rain/windbreaker. I do keep some sweatshirts on board for colder winter days, and some socks to go with the sneakers. I still keep a dress pair of slacks and polo shirt in the truck in one of those vacuum bags for big events, but seldom use them, anymore.
Winter I go with jeans, and keep a pair of hiking boots (in case of snow) in the truck - everything else stays the same..
We are gearing up for scuba gear storage and a true set of foulies/boots this year.