An air compressor is a great asset. We've been really happy with the Makita air compressor at the shop. I have a beat up portable Craftsman at home, that I got from the thrift store for $45. The one tool I wish I had at home is a pair of bending forks. Long handled screw drivers are best, because short ones handles are in the way. A Havel's seam ripper is awesome for cutting thread tangles. I use tweezers alot. And an small, extendable magnet comes in handy. A good bendable light is very helpful for those of us with older eyes.