Thanks everyone for your advice! I went out today to find a presto pot - I didn't have the patience to wait for one to come in the mail and I was excited to begin right away. I had some difficulty finding a Presto Pot, Walmart didn't have them anymore, so I tried Target, Kmart and Shopko. In the end I ended up purchasing a Hamilton Beach 6.5 quart roaster oven that has a thermostat on it. It was only $20, so I figured I'd give it a shot - and if it didn't work I could use it to cook with instead. I plugged it in right away and it has been working great! I have just been scooping out the wax as I have needed it, mixing the color and scent in a separate pot and then pouring it into the molds. After seeing how easy and fast it is - I could never imagine going back to a double boiler! Thanks again!