Cacti and aloe plants are the only things I've ever had much luck with. I managed to keep one soft spined cactus alive for about eight or nine years!
I also like aloe plants, and there really is nothing like aloe to treat minor burns. I've done it.
I intend to get a Christmas cactus for my mantel. They have such pretty blooms and I want one. Like other cacti, they don't require much care, which is really a good thing for me.
An interesting side note: Even though Aruba is a Caribbean island in a tropical climate, it is a desert island and huge organ pipe cacti and aloe grow everywhere. They have a thriving aloe processing industry, in fact.