I use 30 gal plastic barrels, 55 gal steel drum, two holes torch in either side use a chain and cherry picker to lift, 200 gal round tote and a 250 gal tote, the kind with a plastic tank and outer steel cage. Almost forgot, of course the almighty 5 gal bucket. Need to get a couple more of those 250 totes and maybe do away with the need for many smaller containers, and plus they stack well.