Begin assembling the bag and only cut out and iron interfacing pieces when you are about to use that piece because you hate to have to cut out aaaaaaaaaall the pattern pieces again just for interfacing and really just want to get to the sewing.
Assemble the outside of the bag and take pictures.
Remember the handle fabric debacle? Well, I still don't like this fabric nearly as well. It's too much of a blue-green to work with the yellow-green of the main fabric and I dislike that it's also a large-scale print. It should have been a small scale print and I KNEW it, but I just couldn't find anything at the fabric store in town that REALLY worked. Double Arg.
Go to bed because it's really too late to finish up the bag tonight like you thought you would. Yeah, that would take waaaaaay too long and more and more brain cells begin to turn off the later it gets, which is dangerous when working with needles.