I made a spectacle of myself while on vacation in Finland and Estonia. With the summer solstice light, I was able to paint at 10:30 at night and it was just about as bright as midday. I had planned on doing a lot of mixing and bringing only primary colors, but I found that I'd brought cadmium red and it mixes pretty well into mud and that's about it. While I bought mineral spirits at an art store in Helsinki, I didn't pick up crimson and I wish I had. Quick dry white and a quick dry painting medium didn't really seem to offer much in the way of quick drying -- I did get these home in a Ray-Mar box that kept them separate, but they were still plenty wet when I got home. Each of these oil sketches was done in about 45 minutes.