I'm going to be rebuilding my rack and I've seen people use those green sterilite tubs that i guess walmart carries during x-mas? any way i was wondering what people thought of those tubs or any opinions on clear vs dark tubs. Also any tips on getting tubs for the cheapest price? I know $10 for one isn't a big deal but I'm planing on buying 20 plus tubs of various sizes so being able to save some would be nice thanks in advance.