While 39* isn't cold enough for frost, I usually cover mums when it gets that cold in the fall here in Michigan. We have several throw-type small blankets that are perfect for this. Just to be on the safe side, maybe you should cover your tomato plants overnight so they don't get too cold.
I remember Cheez-Its from years ago but can't have them anymore because of my lactose intolerance. I've seen ads for crispy Cheez-Its and have been tempted to try them, but I don't like taking Lactaid just to enjoy a snack.
I just put meatballs in the oven. We don't really need more food as we have plenty of leftovers, so I might just put the meatballs in the freezer. DH brought home a Costco roto chicken today, so now we have that, too. He got a large piece of sockeye salmon that will make two meals, a 4-pack of Triscuits, 4# butter, a carton of 6 mini cakes (he has a sweet tooth), hummus, mini Naans, wine, and some household products. He also found a Michigan National Football Championship hoodie