Boxes and Pegboard

I keep a pasteboard box (used for cereal, soda pack, etc.) handy in the kitchen; when I empty a smaller box, I flatten it and put it in there. When it's packed full, I take it to the recycling dump and just toss it in. Another cereal box holds the weekly ads (we don't subscribe to a newspaper, so we only need to recycle the free-distribution ads).

I have a pegboard for hanging kitchen tools, and I hang grocery bags from lower hooks to collect and separate aluminum and steel. Milk jugs go into a large kitchen trash bag on the floor beneath them.