Complete coffee snob here, but I also like to think that I can find the happy medium between crazy/exquisite and important. Here are my pointers:
1. The most important factor is fresh grind of good-enough beans. Grind just enough for each brew.
2. Water temp, which you mention, makes a difference, but no need to get a fancy kettle. Take water off a boil and count 10 seconds. Good enough!
3. Good-enough beans are basically anything that you can buy in whole-bean form. You could spend $10 on a pound of high-end Starbucks or you could spend $5 on a mid-range pound of 8 O'Clock. They taste different, but I find both levels of coffee to be sufficient.
4. Make coffee stronger than necessary and dilute to your preference. Never use fewer beans than necessary as it will make the coffee bitter.
5. Like flavors? Add them afterwards. Additives in flavored coffee will generally leech into almost any brewing vessel and subtly alter future batches.
Brewing method generally doesn't matter. French press is nice if you don't mind inevitable grit and a manual process. Most auto coffee makers are good enough. I try to steer people away from cups and pods due to waste, cost, and the fresh-grind factor, but they are very convenient if you're optimizing for time. My preferred work/flavor balance is a Melitta cone filter that requires hand pour of water.
Good luck!