I do a ton of side work as well to keep the toys off the books (web development, IT and dabble in some HT work). It works well most of the time.
I keep a bunch of stuff in my office and don't bring it home until it is safe. I remember a couple years back when I bought my projector screen well before I had a room for it. When I finally brought it home to install my daughter told my wife, "Oh mom, Dad has had that at his work for a year. You should see all the stuff in his office." Busted.
Heck right now I have an old Marantz prepro, Niles SI-245 amp and an old Elan amp along with the setup in my sig.