The best practice I've found to date is like this:

First, I learned how to do breath-attention meditation, where I put my attention on my breathing.

Then, I committed to doing this meditation immediately upon being annoyed by something or waiting for something.

It's all internal, meaning I don't sit down in Lotus or close my eyes or change anything about my outward appearance.

At the time, I would have semi-pointless meetings at work, which I didn't have to do much participating in, so I would do it then.

Even for 5-10 seconds or 30 seconds, it has a huge payoff, because it taught me the habit and process of entering a meditative state.

I've since had this idea reinforced by a teacher, who said that in the beginning you should practice entering meditation more than staying in meditation or exiting meditation, because you cannot do one without the other.