I have been playing around with the idea of smaller studies and doing a series of small, consecutive daily paintings. I have a small Julian 6x8 thumb box that I had to modify to make it work correctly, but that was even too big. I wanted something I could carry with me every day. I picked the Guerilla Box 5x7 and it has been great. I got the kit from Utrecht and added the tripod attachment. I have used it in my lap in the car, outdoors and even on a tripod. I have been using my spoils from AIS, my Michael Harding paint to round out the kit. If you like safflower based paints, they are hard to beat. I'll let you know when I man up and try to do 30 days in a row... Pretty sure that's all Ivan handle outdoors.