During my first tour of the Vietnam war I worked on a window ledge and part of my foot locker. The other part was for display, along with the top of my wall locker. When we first got married, I was using a dresser top in the bedroom, until she told me to move to the dining room table because of the fumes and store my things in the hall pantry/closet.
You can always find some kind of room if you try, even a lap table if necessary.