when i take off from the weights for 3 weeks, i do a prison workout. 800 pushups in 35 mins. i then do trash bags with water in them for arm curls. you should try it. it hits the different parts of the biceps. another thing is get rope or a towel and get 12 milk jugs with water in them. you can do lateral raises with them. again it hits differents parts of your delts that the weights wont hit. it will shock your body. i do this for 3 weeks 3 times a week. then i take off for 2 weeks.