Stuff to do..
Change the oil, use the drier sheets as mentioned ... around doors, floors, trunk matt, under hood insulation etc. I relieve the pressure on the window weatherstrip so it doesn't stay compressed. Over fill the tires so they stay round. I uses fuel additive and fill gas tank. I use float charger and every month or so start the car run heat and then AC and back the car in and out a few times if possible - and shut down after through warm up. So far so good over the last few years ... thats during the WI winters with an unheated building.
I guess there are alternatives like remove the battery etc. This is just my routine. HTH - good luck.