Soon-to-be 29, never had a line of Credit.

I'm about to turn 29, and I've never had a credit card. I know I'll be held back a bit for never having had any credit history, but is this something that'll harm me in the long run?

Not only that, but a two part question:

  1. What are some Do's and Don't's about having/using a credit card?

  2. What would be a good beginner card for someone with a more mild lifestyle? Don't really travel, only go out occasionally.

I bank with Chase, so I'm also wondering if I should look into what they offer first..