Raging GOD-liath’s! They drop some nice stuff. Frostburn Canyon has a lot of candidates. As the Dust opens up, you have several farming options there. It levels up a few times, and that gives you the option to farm some more GOD-liath’s as you progress. Unfortunately, the Dust is bugged in TVHM, and stays at level 37 for the duration of the main story. So, I have to scavenge a bit more in the other areas.
I also make sure to check for loot midgetsd in areas that spawn them. They can drop some really nice things, that can tie you over for a long time.
But sadly, I often find myself wanting by the time I get ready to go to Control Core Angel. For some reason, I can’t seem to get decent corrosive weapons at this stage, so I often end up transfering something from the stash. I’m sure I’ve forgotten something, but that’s basically how I do it.