If your concerned about the cost of paints here's a way to save some money. I wanted to use smaller tubes out in the field but all I had was a large tube and an almost empty small tube so I tried this and it works great. (You must have the soft plastic tubes and not the soft metal type tubes.) These plastic tubes will easily re-expand. Just hold the large and small paint tube tightly together and start squeezing the paint from one to the other. You might think paint will squirt out the sides but if done carefully it's not a problem. Try it!