I got 4 hours of push mowing in. Still have at least another 4 hours left to do, though.
The good news is I got all of the hard stuff out of the way. I hate the creek bed as it is always a pain, but I finally figured out how to halfway drop the mower over the edge of the creek for the high weeds (without losing it!). Now only 20% of it will need weed-whacked.
I'll need to have a big bonfire once the yard is back in shape.