Molson Canadian beer has the above as an insert in the latest Stuff magazine with the tag line "Wallet Size proof that you are a man with a sensitive side, in case she's into that." They are even perforated for your convenience.
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.