Paint by Number: Accounting for Taste in the 1950srevisits the hobby from the vantage point of the artists and entrepreneurs who created the popular paint kits, the cultural critics who reviled them, and the hobbyists who happily completed them and hung them in their homes. Although many critics saw "number painting" as a symbol of the mindless conformity gripping 1950s America, paint by number had a peculiarly American virtue. It invited people who had never before held a paintbrush to enter a world of art and creativity.
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.