My garage is kinda small, I have a corner for my tools. But I need to pull them out into the drive way to do any work. So portable is the key. I had a table saw on a stand that I'd have to pick up to move, and I bought a miter saw.
Step 1: Wheels
I started with 3 inch lockable wheels. This works great for moving over the driveway - garage transition.
Step 2: Basic Frame
The table is made from 2x4s. very strong. The 2x4s are joined using pocket screws. I used a Kreg pocket hole jig.
Step 3: Sides
Both sides, and back have fold up tables, the top is about 8 feet long, and 4 feet wide.
Step 4: Drawers
The drawers are saw dust collectors, and storage for saw accessories while not in use. I used some scrap plywood to make a lip for the drawers to sit on.
Step 5: Miter Saw
The miter saw can be moved to the bottom while not in use.
Step 6: Over View
11 2x4s, 1 sheet of 1/2 inch plywood, and 4 wheels. Over all cost less than $100.