Cars: We don't have one, we live 3 minutes from the Tube and it's nicer to walk around and get some exercise when I need to get somewhere. If we lived in a different city I'd probably reconsider but as long as we live in London, we don't need one.
Jewellery: I wear my wedding and engagement rings, my Tiffany open heart necklace, and a pair of simple earrings, and that's almost always it. Sometimes I wear my grandmother's sapphire cocktail ring if we go out somewhere fancy, but usually it sits in my jewelry box. I like that what I have is quality, but I don't need more!
Housing: Our flat is in a nice and safe area but it's not fancy at all, and I don't care. It's big enough for us and everything works just fine, and the space has good vibes, so I can't complain.
Shoes: Actually I do care about nice shoes, but I don't need them to be designer, I need them to be COMFY! My feet are a bit screwed up from figure skating and running cross country competitively as a kid and my arches are weird, so I like "natural" brands like Naot, Birkenstock, Beautifeel, Ecco, etc. A lot of the styles are old-lady-ish but every so often they'll make something really cute. And comfort is especially important since I walk a LOT (see "cars" above!).
I do care about going on nice vacations (not fancy necessarily, but to cool places), good organic and free-range food, clothes, tech stuff, and of course bags!