What to use to fill in small holes in metal

Tiny holes in rust, umm. You could use POR 15 which it thick enough to seal the rust but never the less it is still rust and in reality its just another car and how many cars have you been through where persons even yourself have jury rigged all the problems?

Tiny holes from the front are usually flaking in the rear but never the less it is rust and needs to be cut out and patches welded in. We can make all the excuses in the world why not to do it correct from the get-go but that is just excuses.