A Dozen Things (and more) You Can Do With a Combination Square. The combination square is one of my most used tools. This video demonstrates a dozen (I can think of several more) measuring and marking tasks at which it excels.
Build these handy undersink roll-out trays in a weekend. You can tackle this project with simple carpentry tools and some careful measuring. You can make all the trays in an afternoon using building products from your local home center or hardware store
The Murphy Desk - "The space-saving design hangs from the wall and opens to reveal a small storage area behind the door and a table top when folded down. When closed, the Murphy desk transforms into a chalkboard or corkboard - the choice is up to you.
I needed this idea the other day, but I can't remember what for. :P How to Build an Easy Glass Bottle Cutter made up of Common Parts DIY Project - The Homestead Survival - Homesteading Re Purposing Tool