We have a really low electric bill!

So, my hubby logged on today to see what our new electric bill was. He was so excited when he saw...it was $70!. The way we lowered it by about half or sometimes even more is we now use only those little fluorescent bulbs, making sure to turn off lights that we are not using anyway and we also do not run an AC. We are in Florida so it can get sort of hot here it has already been in the 90s...so we bought a $150 pool and also a salt treatment system for it so that we do not have to buy all of those costly chemicals (the system will pay for itself and then some this summer).