I've only had these for a little while and I did end up buying extra handles (different company though because the handles I got received better reviews and they definitely are better)...I ordered enough handles for all the bands but the strongest since I'm not at that point yet.  I had my husband hang a hook on the back of my door to store the bands and install two different heavy duty hooks on the wall (one at waist level and one at over the door level).  I use these bands on these hooks to work different muscles.  I also ordered the FitDeck (I think that's what their called) for resistance bands and it gives me ideas on how to use these bands best.  I looked on youtube too for some ideas.  These bands are actually fun to use.  I have to figure out a certain routine for myself still but I do like them and they seem pretty sturdy.  I store them up on the back of the door so the cats (I have two) don't get at them.  They love things that hang and they attack (ugh).  I would recommend these as long as they don't break easy...if they do, I'll update.