Or nicotine. It's funny, I've had three different Smart cars--an '08, '09, and the missus' current '13--and all three had the same Smart car smell. Pleasant, actually.
Speaking of which, it took five weeks to get a complete set of three wipers for her car. I'm going to order another set to keep on the shelf. Just bought an old Tracker with low miles and damn few options to break. Was pleased to find a set of belts and idler pulleys on the shelf that I'd purchased for a previous Tracker that got totaled before I could install them. Was thinking that parts such as these would be good prep items.
Belts, wipers, filters, oil, washer fluid, antifreeze. I'm not rich but have already learned to keep batteries, brakes, and tires fresh. I own a repair manual for every rig I own, and do as much maintenance and repair as I can, including tire mounting. (Manual tire changer and non-electric balancer.) If you can't fix it, it's potential yard art.