Milk crate. I zip tied 2 pvc tubes that have notches cut out's in them to hold bar wreches, one PVC tube to hold a dead blow hammer, another notched PVC tube to hold a chip brush to clean around the bar oil and gas caps before I open them to refill. It holds 1 gal gas, 1 gal bar oil, extra bar oil, extra chains (2), 2 large wedges & 2 small wedges and a heavy duty magnet with a piece of threaded rod on it so I can mark 16" on the wood to buck to length. I can also fit a can of marking paint on top if needed, along with 1 pair of gloves. Oh, yeah, and an Israeli bandage in it's sealed container "just in case". I was thinking of adding another PVC tube with a glue cap on one end, a coupling that was glued on one end and another piece with a cap glued in place. It'd slip fit in the coupling and hold chain files. Cut the first piece w/coupling shorter than the files would be to make them easy to get out. I zip tie the PVC tubes to the inside of the milk crate so I don't lose them (or knock them off if they were on the outside). If I'm using the small or medium saw I can also slip an extra bar in there vertically. (14", 16" or 18" bar)