Skinner:"We can buy real periodic tables instead of these promotional ones from Oscar Meyer." Krabappel:"Who can tell me the atomic weight of bolognium?" Martin: "Ooh ... delicious?" Krabappel: "Correct. I would also accept snacktacular."
Principal Skinner won't have to spend a penny to get a spiffy new Periodic Table and neither will you. Just go fill out a short questionnaire, and they send you a FREE copy of their new periodic table of the elements wall poster.
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.