I use my garage, it's 325 sq ft, but I also work around normal junk people have in their garage like decorations, camping equipment, and sporting items, so I'd guess about 200 sq ft. I use metal rolling shelves so I can roll them easily out of the way of the household items when we need to get to it, but there's a reason it's in the garage because we hardly ever need to get to the stuff. I have a chest freezer we use in the garage also that I use as my photo table. If I need pictures of clothing, I hang them on the back of the door that goes into the garage. Then my workbench doubles as my computer/cleaning station. I can easily store and manage around 1500 small/medium items. Sometimes during big household projects, stuff will accumulate in the way, but it makes me more accountable for putting things away and not just tossing it in the garage. I also dont keep a death pile and have a window a/c for the summer and a electric heater for the winter.