Projects from those books and several Instructables (like the Nomad Desk) inspired me to make a new desk that easily folds and collapses for flat travel.
All materials were acquired for roughly $100 from a local hardware store, making this an effectively inexpensive project
Step 1: Call Forth the Tool Army
Handheld Circular Saw
Concrete Floor/Random 2x4s and 4x4s
Home-made plumb bob (thread and weight)
Step 2: Assemble the Materials
(2x) 2' x 2' x 3/4" Plywood Squares
(2x) 1" x 4" x 8' Pine Board
(1x) 1" x 2" x 8' Pine Board
(1 box) 8 x 1-1/4 Wood Screws
(6' - 8') #4 Braided Picture Wire
(4x) 2-pack Hinges (1.5" long non-removable pin 4 screws each)
(4x) #210 x 1-3/16" Eye-screws
(2x) Quick-Release Keychain Dealy-things
(1qt) Acrylic Coating
When selecting the plywood squares, lay them flat on the floor to check if they are shaped like a potato chip. Flat is good.
Look down the length of the pine boards to check for straightness in all directions. It is worth your time to get straight wood. You may have to go through a few dozen before you find a good one.