Aluminum Foil Containers are used in every restaurant in the country for serving takeout or packaging leftovers. Aluminum utility cups come in handy for certain applications and steam table pans are used in many restaurants. Aluminum containers are stackable, sturdy, and resist leaking. Cleanup is easy and once cleaned, containers can be reused. Foods also stay fresher than in Styrofoam or plastic containers.
Just remember not to put aluminum pans in the microwave. If you do, you'll get an incredible light show and probably end up ruining your microwave.
Aluminum Foil Containers from your restaurant supply superstore.