I currently have my house set for 68F (20C) degrees while we are home, and 63F (17C) while we are away and at night. (the picture is just an example)
I'm contemplating turning it down more at night. I don't buy the whole 'if you turn it down too much it takes more energy'. That, plus I turned off the furnace last night and woke up to 63.5F degrees. Its not real cold out yet, but I also don't have my attic insulation done yet either (which will over tripple the insulating value).
What do you have yours set to?