Need some basic info and suggestions on first credit card

I have never had one. I have always tried to save up and purchase thigns I wanted/needed up front with the full amount (minus car and property). This has worked pretty well for me. But it looks like with all the benefits and rewards available with credit cards now, it may be beneficial to get one.

Preface: I know nothing about the options available. I know generally that there are two types (points vs cash), but that's the extent of it.

Anyone want to give me a crash course on the difference between the two, which have you found to net you more money/free purchases? Which should I get for a first time card that would get me the best return?

I plan to use the card for groceries, gas, going out to dinner/bar, household purchases, and I guess any unforeseen large expense I have to make in a bind (car repair for example).

I rarely travel by plane, so I won't be using it to purchase that or hotels, and "plane points" are not that big of a concern.