Using a power drill and paddle attachment mechanizes the job of stirring paint, but it can cause splatters. One way to solve the problem is to use a paper plate. Punch a hole in the center of the plate and push the end of the paddle attachment through the hole before chucking it into your drill. Then hold the plate down over the open can while stirring.
When power mixing, reduce the splattering by putting the container in a large trash bag.
Old bicycle innertubes that are cut into long, narrow strips can make excellent clamps for repairing broken wooden furniture. After gluing a fractured joint, the rubber strips can be tightly stretched around the repair area to hold pieces in place while the glue is drying.
Welding inside of a shop or garage can create fumes. But they can easily be removed from the area by using industrial-type fans, or you can make your own from a recycled forced-air furnace fan. Check with the installers in your area for used fans; the cost may not be more than about $25, or they might even give you one. Cover the intake and all moving parts with heavy metal mesh, and run the power cord through a switch for easy on-off control.