Tools and stuff not related to a specific guitar
For one of my electric guitars, I decided that I wanted to add binding and abalone inlay along the binding. So I got the StewMac Binding Router guide. Very easy to use. The only challenge, and that is because I have to bitch about SOMETHING is that there is up/down adjustment. You have to take the guide off, adjust the bit, reattach the guide, test, repeat until correct. But in the grand scheme of things, my bitch is minor.