I dye a little everyday. I know I've talked about this before, but I thought you would enjoy seeing my process.
I mix my dyes in 4 cup amounts and dye my fabrics either flat on platters on in small containers. I pour left over dyes on scrunched up fabrics. These scrunched up fabrics become some of my "favorite" fabrics. You can never predict how they will turn out.
I like using small lidded containers to dye solid colors. These lidded containers are SO MUCH easier to clean and take care of then zip lock bags. You spend a little more money initially but in the end you are way ahead.