When Jimmy goes to put the second stack of bills into the duffel bag for Mike to take, it has a paper band around it. When it cuts to his hand putting the bills into the duffel bag, the paper band is gone.
Saul's back in his beauty-parlor office, researching for a legal hook to get the Kettlemans off. He reaches for (West's) New Mexico Digest (Criminal Law) and starts reading on a page in the "embezzlement' section -- all clearly shown onscreen. The book he's clearly seen to be actually opening up, however, is Vol. 132 of the New Mexico Reports (a compilation of court decisions) -- an entirely different beast.
Philly police districts are referred to as precincts. Philly police areas are districts not precincts.
When Mike shows Jimmy the pile of cash, the stacks of money only have two serial numbers. The purple-tinted hundred dollar bills at the center of the frame are "B 3286220 B", and the varying denominations (fifties and one hundreds) outside of the center frame are "SGI8017583Q".
RC truck that Mike Ehrmantraut is seen putting the Kettlemans' retainer on is a 2014-or-similar Dodge Ram: an obvious anachronism for the early 2000's that the show is set in.
You can actually see the crew behind the camera looking at Saul and then hiding in the reflection in the window in the last scene.
In the final scene where Jimmy is crying by the window, two crew members are visible in the reflection behind him. One of the crew can then be seen ducking down as the camera advances. (45:41)
In the final shot, crew members can bee seen in the window reflection behind Jimmy.
At 8:52, when Chuck follows Jimmy back into the house, the ceiling light fixture is clearly lit. However, Chuck's house has no electricity, as the panel wiring has been ripped out.