Today I "fixed" the lawnmower. It stopped running about 3/4 of the way through the backyard. I checked the gas and it was full and as I had had it tuned last season, was holding my breath and praying for it to run another season. I've said that same prayer for several summers now, as I've had it for about 11 years.
I finally figured out where the air filter was, pulled it out and cleaned out all the crud. It sputtered, but started and ran long enough for me to finish.
Need to add "new air filter" to my list of A Few Small Repairs.