I'm Dave, in Macclesfield (Cheshire, UK).
My daughter gave me some Lithops seeds for christmas, so this looked like a good place to sign up and look for ideas, advice etc.
I've been growing cactus of various sorts on the windowsill for about 50 years. I have 2 south facing windowsills about 15ft long, which are too sunny for many plants, and over the years I've added and added until I have to give away the ones I can't fit. Not exclusively cactus by any means, I'll grow whatever takes my fancy, and currently have a small greenhouse in my bedroom as a tropical setup for bromeliads.
I only do it for fun, and have no urge to show or compete - I think my competitiveness gland failed in early childhood.