Painting On The Go

Lately I've been painting mostly at my two gaming nights.  I carry my Army Transport about half full of trays of various miniatures I want to paint. I have the foam tray for paint pots they made which is full of my P3 paints. I also carry my water cup and the folded paper towels I use as well as my makeshift wet palette as a to-go painting surface. My brushes take the brunt of carrying everything this way as they are just laid down between the rows of paint pots.  I've looked at various ways to carry my brushes in hopes of not damaging them as much as just laying them on the foam is doing. I've seen a couple of paint brush boxes with foam to hold your brushes up and away from each other. I may go with a homemade variant of that solution. Then I could modify it to carry other tools along with the paint brushes;glue, files and my pin vise. That way its not just a paint on the go box but a modeling on the go box. What does everyone else use? Do you model or paint on the go or only do either at your home station?