Mowing height should be based on the type of grass, not a global 1 height fits all. Here in Texas, where lots of lawns are Bermuda, mowing high will leave you with a weak lawn. Of course, if you have St. Augustine or fescue, sure mow as high as you can.

Watering deeply and infrequently is very good advice though. If you have a sprinkler system with zones, it's good practice to run 10-15 minutes per zone depending on the type of sprinkler head in each zone. Do that for all zones then repeat. This will result in a much deeper soaking and lower runoff amounts.

Check your sprinkler heads yearly and replace ones that are broken or misdirected.

Fertilization should again be according to the type of grass you have. You would never fertilize corn the same way you fertilize beans (trick question, you shouldn't fertilize legumes) so you shouldn't expect to fertilize different grasses the same amount or time.

Lawn care in Boston is going to be drastically different from lawn care in Dallas. Do a little bit of research for your area and your grass type and then you can develop your own guide for the cheap and lazy.