Yesterday I was playing my Les Paul and I was getting some pings while tuning that indicated the strings were binding a little in the nut slot. I was also getting that thing that happens where you turn the tuners and nothing changes until you reach a certain point where the string suddenly changes pitch. I finally thought - why do I keep putting up with this - (also read as why am I so lazy I won't fix this) - so I got out the Graphit-All guitar lube and applied very small amounts to the strings at the nut. After working the strings back and forth a little to work in the lube - problem solved. What I did not expect was the effect it had on string bending - which I do quite a bit. Now everything tunes and plays better as the strings don't bind at the nut. One simple thing and my guitar played and performed better! I can't believe how bad I am at procrastinating about implementing some of these very simple things I know about, but have just not taken the time to do. So - Let's hear your advice on simple tips and tweaks to improve performance. We might all learn something new!