Played some poker, usually where the dealer calls the game, so you might play 5- or 7-card stud, or draw poker, but you might play a lot of the mickeymouse games as well. Social pressure could be applied to keep the games from getting too outrageous.
My youngest brother used to swear by hold 'em, but I never really encountered it until I started seeing it on TV years later.
Bridge is the game that used up thousands of hours of my time. Learned it in the senior lounge in high school, and played all through college and law school. Parents, teachers, and the parents of many of my dates would play.
To my mind, thebest of all card games. The down side is the learning curve.