I was going to laugh at those degree figures (62° & 68°), but then I remembered that I used to live up north (Detroit & dah U.P.), and at one time was used to a wholly mammoth like climate. then I moved...my energy bills are still less than they were up north to this day, and I moved to the south almost 19 years ago (tempus fugit).
In other words, moving, would probably save you even more money than tinkering with the thermostat
