Our most annoying enemy... Rust.

[Roadkillerv8]

Hey all, ive posted my truck on here a few times and know how imgoing to take car of my rust, i just dont have the time or money to do it at the moment. Itll get taken care of in the summer once class is out. However im getting tired of it just sitting under a tarp for days on end waiting for the rain to stop. Is there anything i can lather on this to keep it from rusting worse thatll just be sanded or cut out later? I want to drive it, but i dont want the rust running down the a pillar if its not already gotten that bad.