Hello, i am 18 and i decided to do weight training because i am rather skinny. I have been doing weight training at home about 3 times a week since feb, i only have dumbells at the moment, i can see a differance in the size of my arms. But until i can join a gym in summer i feel rather limited i what i can build on. Are there any good chest and forearm excersises that i could use? thanx