Now we're going to learn how to clean the bass. That's cleaning the frets, polishing the body. The first thing you want to do is take the strings off. It's a really good idea to de-tune it as much as possible before you cut the strings off. You don't want to have a sudden relief of tension on the neck. Tune it down a bit. Take your cutters. Make sure you discard your spring ends, or else your kids will kill themselves.
First thing I like to do is polish the frets. To do that you're going to need some nice fine steel wool, usually quadruple O is good. Tear a piece off. Stewart MacDonald, which is a great guitar supply company, you can order from them on the internet, makes these little fret guards which slip right over the fret so you're not going to damage the fret board when you do this. You just polish them up. That's that. I like to keep a little brush around to try and get those little metal shards away from the steel wool, that way you don't scratch your finish.
This is a polish that I made myself, actually. It's Dawn and water. You can buy polishes. Fender makes good ones. There are a couple of other brands out there. But I actually like Dawn and water because it dries very quickly because of the soap that's in it. And, the soap does not damage the finish. I like to use shop towels. I don't ever like to spray directly on the guitar. I usually spray onto the towel itself. Get a good amount on there. Just do the whole guitar.