Ok I know I need a thermostat...but which one is best? And maybe economical for an owner of one snake? I saw one mentioned in the sticky thread...I just like opinions. And where do you get them? I was told by one person that Lowes sells them but I looked and when I asked for help and told the associate what it was for...well, I got the "look"....the look a person gives you when they think you are crazy...