Car intermittently won't start

[Huskymaniac]

No symptoms. MAYBE the car was down a little on power in the morning. Maybe. Drove 20 minutes from work to Harbor Freight. Ran well. Idled well. Restarted fine. Drove down the street to Lowes. Got my stuff, came back to the car and it wouldn't start. This is about 5PM. It sputtered, stumbled a couple of times and died. Tried a bunch of times. Best it would do is sputter and stumble a handful of times before stalling. Wiggled and reconnected the MAF connector. No change. Came back at 9PM to get the car towed when the parking lot had cleared out. Tried the car, same deal. Tow guy never came. Called a second one around 10PM. Tried the car again. Didn't even sputter. Just turned over. Second tow guy never came. Gave up at midnight. Tried the car again. Still nothing. Went back this morning to try and get it towed. Tried the car. After turning over a few times it started. WTF?!?!? The idled bounced a little but it stayed running. Turned it off. Tried again. Same. Tow guy shows up, of course. Car starts up again. He follows me home, just in case, and then brings me back to pick up my other car.

Any thoughts? I have recently cleaned the MAF and the contacts and resoldered the connector on the internal PCB. I also recently replaced a known bad TPS with a new used one. It has been working fine.