For years I used the end of the kitchen table, or the table on our enclosed back porch. Then I would pack up and move it away each evening that I worked.
But now....we have 5 bedrooms and one of the kids is off to college, and our son (11) doesn't need a playroom anymore so I made a guest room and a computer/scrapbook room. I am very lucky and it is way too convenient for words. My hubby built me a bookcase from black formica covered mdf, it is 14 inches deep and 4 shelves high (5 if you count the top), about 36 inches wide. Then next to that he built me cubbies 14 inches deep about 6 foot wide 2 foot high, divided in to spaces for tools, paper etc. Under that I have a 6 foot white plastic table that folds if I need to use it for another event or to take to a crop. Then next to my table I have a rolling cart with drawers.
I am thinking of buying one of the new 2x4' tables at Sams that matches my big one to make it an L shaped work space. Plus I think that would be small enough to drag to an all day crop for added space (I usually use two extra chairs to keep everything reachable).
Good luck with your search for space. Are you lucky enough to have a basement? If so, buy a nice light, a couple of the folding tables, a cheap piece of carpet and make a cozy corner until you can afford walls, and such.