another quick question, i started back on the program i use to use, found my old lifting records, and just now noticed i don't have any exercises for shoulders, and pondered as to why i didn't do shoulders before and i remembered that i took shoulders out of my routine cuz like forearms they basically are working in all the upper body exercises, like bench works front delts, rows back delts etc. should i add some shoulder exercises? what are good shoulder exercises?