Any good ideas on how to do this? 5 lb increments are too much, that's 10 lbs total to your lift and there's no way to progress that quickly. I know they have magnetic plates but those are way too expensive, and they apparently don't work on the dumbbells with rubber caps. We have 2.5 lb plates at my gym, but what could I do with those? Get some duct tape and tape them on one end of each dumbbell and live with a weight imbalance? Anyone have the same dilemma?