Daryl has covered the weather proofing very well. I think it would be well to cover the security also. Leave the drapes on the front windows, a few lights on timmers and maybe a picture or two on the walls that can be seen from the street. My former brother-in-law leaves a radio on. He says "would you go in a house that has a radio playing".
I wish you a quick sale on the old place and many happy days in the new one.