I was soon addicted to cards. Actually, I think all my sisters loved to play cards. Some of my fondest memories was me and my sisters sitting around the table playing Rummy 500. And even now, many years later, we try to have a few 'sister nights' where we'll play cards or a board game. If we play cards it is either Rummy 500 still or Phase 10, which is what we've played more often in the last 7 years.
I don't need other people either, a few years ago I became addicted to spider solitaire, but haven't played that in about 2 years. Maybe I'll start back up again tonight.