Hi C.L. I do alot of walking every day, and take my ipod or little radio , at least 3 miles daily, and I have a small round trampoline - the type that kids use, its low impact exercise- No.. I dont jump.. I jog, or dance on it., again, with my fast music, or even a good talk radio prog.. I like LBC. Dont know if exercise makes you lose weight, but it burns the energy that you eat I suppose..
I enjoy it.. you've got to do something, anything, that you enjoy, otherwise, theres no motivation to keep doing it..
A 'little and often' approach is better, ( ie, every day ) I think, than just hit and miss every few days.. but, anyway, whatever you choose, choose it for life, and good luck !