dyork: Milk: They used to sell jugs, that were returnable, but the authorites were concerned that folks might put something other than milk in them, so then we had non-returnable jugs, but that is a waste of resources.

DuPont Canada came to the rescue with milk bags, originaly three imperial quarts in a package to replace the three quart jugs. When we switched to metric they rounded the 3.5 liters up to 4. (The bags got slightly longer) but kept the same diameter so folks would not have to change the pitchers.

The milk does keep well, as the opening is small. You put the bag in the pictcher, and tap the bottom to seat it in place, then cut off a corner.

If you are unconfortable with bags the The Becker Milk Company still sells one-use milk jugs. They have a 25 cent deposit, and returned jugs are used to make other plastic products. They also supply Mac's Milk, but I am not sure if every Mac's has jugs.

"coin management" I find that 35mm Film Cans hold "Two'nees" (I still say we should call them Doub-loons) and looneys quite well. The Fuji ones are clear so you can see what you have. Ask at a camera shop or a one-hour lab if you don't have a supply. These days they are recycled, but they will probaly still give you a couple if you ask nice.