I don't have a couch just a long line of dumbbells ranging from 1 lbs all the way to 35 lbs (and I really want a pair of 40 pounders). I also have 4 1.25 lbs. magnets so I can do, for example, 22.5 lbs. when the 5 lbs. jump is too much. My barbell weighs 15 lbs and I have enough plates to go...