With those nice 100+ degree summers rolling in, I had one rather asinine question for all the HVAC gurus here. Which is more efficient when I am gone all day? Completely shutting my A/C off, or setting it to a higher setting than when I am home, such as 80-85 degrees. My apartment is decently insulated (it's also quiet! Amazing!), but I still come home to an uncomfortably warm place if I do not run the A/C at all, and it seems to take a while to get the place cool again. Thanks in advance!