Compressed air in the woodworking shop.

Adding compressed air is something that makes an amazing difference in your workshop.  Its hard to explain until you actually have it, but it really helps and is fun to use.  I love things clean, but hate cleaning up the workshop.  Having compressed air in the shop allows me to get rid of the biggest hassle in the shop, sawdust.  One of my favorite techniques is to put a line to my drill press and have a quick connection there.  When I am working I can occasionally blast my work with a shot of compressed air and keep the area clean while the drill bit is spinning.