For starters if your really looking to make some long term progress it would be necessary to get a gym membership unless your home gym is equipped.
A lot of people fall into the bad habit of trying to get x isolated part bigger when they should be concentrating on making the body grow as a unit. Ponder this great quote not excatly sure who said it first so i'll give credit (iron addict, dc and Stuart McRobert since they all stress this concept)
"What if, instead of doing so much you never grow, those 3-4 exercises per body-part to ensure “complete development” of all “aspects” of a muscle. What if all you did was:
Squats 400 x 20
Stiff-legged deadlifts 375 x 15
Bench Press 315 x 12
Pull-Up with 100 lbs extra weight x 12
Military Press Body-Weight x 10
Calf-Raise 700 x 15
Weighted Sit-Up 175 x 12
How much bigger would you be than you are now, and what muscle would be under-developed?!?!?!?!?!?"
Had to get that out first so i don't feel like i'm robbing you by just throwing some acessory forearm exercises at you.
http://www.bodybuilding.com/fun/exercises.php?MainMuscle=Forearms
and also look to buy one of these and work your way up
http://www.ironmind.com/ironcms/opencms/IronMind/Main/captainsofcrush1.html