I've been watching this thread for a while and it made me realize I needed to be more on top of my tires. Started at 7:00 p.m.

I checked the tires, the back one has been getting low pretty often. It was at 50 PSI, front tire was at 60 PSI.

I pulled off both tires, checked them for wholes, tears, etc. Used white towels (now black).

Tried to use the handpump, I'm too lame I guess.
I have an air compressor, so I thought, I'm sooo lucky. NOT. Couldn't find the adapter, had to call hubby, found the adapter. Couldn't get the compressor to work. Finally got it to work. Filled my tires. Misplaced the tire gage (again) found the gage. Both tires felt good to my but the reading was 70 PSI.

Checked the tires for leaks again. Filled the tires, again, both are at 75 PSI.
It was now about 9:45 pm. Had to get food for the dog. At 10:15, ate and icecream sandwich.

Got up at 5, checked tire pressure, still at 75 PSI. Put air in the tires again, still at 75 PSI.

Took the bike out, felt a bump, not a flat, but a rolling bump, so everytime the back tire rolled, it was like there was something there in under the tire. The faster I went the more bumpy I got.

Turned down another street, newly paved, still rolling bump. Pulled over to the brand new drug store parking lot, newly paved also and well lit at 5:15 am and traffic free.

Played with bike tire for about 40 minutes.
Got home at 6:20
Fed Dog
Took shower
Put bike in car
I'll be at the bike shop at noon.