Buy quality loops and or chain never the cheap stuff.
I rarely grind my loops.
I am a hand filer almost exclusively. I try to touch up a chain every tank or so but occasionally will go two tanks of fuel depending upon what I am doing. I find that two or three strokes of the file will keep the chain just right and staying on top of it minimizes the amount of filing that I do.
Some folks have said that filing every tank wears down the chain quickly but from my experience touching it up every tank will actually minimize the amount of metal that is removed and makes it last longer. I learned that trick from an old head logger years ago. Me I touch up the chain wherever I am, never in a vice. Most of the time kneeling in the forest next to my fuel can.
Dress your bar occasionally the wear on the bar can effect performance significantly.
Never use old regular oil for chain oil. It just does not perform properly and the stuff is not that expensive to claim it cost too much.
Use full synthetic 2 cycle oil. The old stuff or even the semi synthetic 2 cycle oil has been left by the side of the highway for keeping the saw running cleanly and carbon free and does effect the smell of your clothes at the end of the day.
If you tighten up the chain when it is hot/warm loosen it at the end of business so it does not over tighten on the bar as it cools. Normally not a problem but can be, given wrong circumstances.
When you change the loop, flip the bar over to equalize the wear. As to the drive sprocket some will say to change it after you wear out two loops. Maybe I have been lucky but I have never had it wear that quickly but I would check it for wear every time you pull a loop off and/or bar (why not it is visible at that time and can easily be done.)
I like full-skip, full-chisel for normal cutting. If I am doing site prep work requiring the chainsaw instead of the brushcutters, I never use full-skip as the size of the material does not warrant it and it effects safety when cutting small diameter woody stems.
Always wear PPE. The cost is much less than one visit to the doctor and the pain and down time are even worse. Don't care if it is hot wear it.