If more people actually put these on their cars, the world would be a much happier place. If you were behind someone with a "Fuck you, you fucking fuck" sticker, wouldn't that just brighten your day? Instead, I am reminded to support the troops and that the hummer ahead of me is "in loving memory" of someone who apparently died at the age of 14. Shit, I didn't need to know that. Now I am all bummed out. Thanks for sharing, you fuck.
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.