hey everyone. im new to weight training and i need opinions on exercising the chest. i have dumbbells and a barbell but no bench and im not looking to buy one. im lifting 20 kgs (44 lbs) on the barbell for my biceps and doing 12.5 kg (27.5 lb) two arm dumbbell extensions for my triceps. i dont feel like im getting enough out of regular pushups. i read that u can have a person place a weight on ur back but i work out by myself..and maybe having noone to support it or some how strapping it is too dangerous...does any body know of..or can anybody come up with a way i can put more tension on my chest? anything will be appreciated.