With a minimum purchase of 500 pesos, SSS cardholders can avail the 10% discount in all SM Department Stores. :) You just have to present you valid SSS ID. :P
Happy shopping. Tipid. :)
Images taken from:
http://travel-on-a-shoe-string.blogspot.com/2011/09/sss-disability-benefits-guidelines.html
http://www.sssphilippinesonline.info/id-services/sss-id-card-requirements/