A quick tale of design evolution: Makedo is a set of cardboard-creation tools, reusable screws. It lets you make things tape alone won't do for. It originally shipped with two tools: a saw/hole-punch, and a screwdriver… 
The saw was never that effective; it cut ragged lines. A good cardboard cutter works better. The screwdriver is good, BUT, you had to switch between it and the hole-punch a lot… So now, they offer a combo tool…
The mini-tool is much smaller; it combines the two functions into one; it's yellow so it doesn't get easily lost in a pile of cardboard; and you can keep it on your finger while working. Great solution!
Makedo kits are affordable, open-ended, infinitely reusable. Highly recommended! Here's two Amazon affiliate links: 1. Makedo amzn.to/2NOiDqT 2. a cardboard cutter amzn.to/2CKlDhC
Oh, one more thing: if you have access to a 3D printer, they also have downloadable models of some very handy parts you could print at home: make.do/pages/how-to-m…
