Trim the Ends
For some, this is esthetically questionable. Early photos of Bob Dylan show him with untrimmed string ends sticking off in all directions. (Luckily, he never put anyone’s eye out before he could afford to pay someone else to restring his guitars.) Some old folkies like to curl them up in little loops. Like pre-distressed jeans, it’s all about style. I like to cut string ends off, and if you’re so inclined, here’s where the pliers/wire cutter comes in. Nip ’em off and use the pliers to bend the remaining stubs so that they point down toward the face of the headstock.

Changing Nylon Strings
Classical guitars have slotted headstocks, and their strings anchor at the bridge differently, but restringing is largely the same here. Take a look at how they’re looped. Now take one off, and insert one end of the new one into the hole from the saddle side of the bridge. Bring it back over the top and under where the string went into the hole. Now loop it back over the top and underneath the string where it came out of the hole at the back of the bridge. Anchoring it at the tuning post is the same as with a steel-string, only here you take all the slack out. Nylon strings stretch enough so that there will be a loop around the post by the time you tune it up to pitch.

That’s it. You have a fresh set on and your guitar is new again. Enjoy!