You can improve the visibility inside your workshop just by painting the walls and floors white. If your workshop is in the basement paint the sides of the window wells white too.
You can attach a length of soft copper tubing to extend the reach of a blow gun nozzle used with an air compressor. The extra length will allow you to clean out motors and interior machine parts without getting a face full of dust. The end of the tubing can be bent to reach around the back side of motors or into other hard-to-reach areas. Use a wet/dry vac along with the blow gun to help keep dust out of the shop.
Worn-out nylons can be used to hold tools on pegboard if you run out of pegboard hooks or have something bulky to hang up. Knot up one end, then feed the nylon through the back, and then loop it through appropriate holes for the tools you want to hang. The nylons will stretch nicely to fit various tool shapes and will actually hold the larger tools more securely than the older-style pegboard hooks. This trick works best if you are able to gain access to the back of the pegboard.