Xbox.net is giving away free 1 year magazine subscriptions to Xbox Nation, Computer Gaming World, Electronic Gaming Monthly, Computer Shopper, and PC Magazine if you register at their website.
I just tried it. Looks legit. Sign up for their site and reply to the email. You will see the magazine choices. Pick up to all five and within 4 to 12 weeks, you will have quality bathroom reading for an entire year.
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.