What are some must have cleaning products?

I'm new to the Tesla app. When I know I'm going to be leaving how should I precondition the battery and car cabin? I see that I can set the climate, but that makes no mention of getting the battery ready. If I schedule the preconditioning I have to remember to cancel the schedule. (which I'm no good at. Today the car was all warm and toasty and ready to go, for a trip I scheduled and took yesterday) Work from home means I don't have a set driving schedule, and it's winter here so a warm car is one of the perks for having a charger in the garage.

So, what is the best way to precondition Tesla battery and cabin?

Wife's phone was always finicky with connecting to the car and switching the seat to her driver profile. Mine always worked flawlessly and switched to my settings as soon as I opened the door. Might not be related but a few days after I've updated to 2021.44.25.6 my phone stopped connecting to the car as well.

I reconnected both my and my wife's phones to the car and everything works as supposed to except it doesn't switch between driver profiles. We have to go into the menu on the screen and switch profiles so the seat, mirrors and steering wheel adjust accordingly. Anyone else have this problem?

Does anyone else have constant windshield fogging & freezing issues? In the Nordics this is unbearable. MY20/SLR

Has anyone had experience of purchasing a Tesla specific air fragrance that adapts to the vents in M3s? Saw a Tesla specific air freshener on Amazon but not sure if this is worth it for the price.

Or is going for the usual car fresheners hanging from mirrors or freshener sprays/diffuser the better way forward?