I just bought a 4# jug of Universal at Sportman's Warehouse in Washington, a couple weeks ago. I think the demand is still higher than supply, so it isn't sitting on the shelf for long. I now have my powder supply built back up to where I am not shopping for any more.
While Universal and International seem to have some sporadic availability in the larger jugs, the only reports I've seen regarding Clays is of 1 lb containers. The 1 lb. containers are less attractive to the shotgun shell loaders and more attractive to the pistol guys. But the good news is it is starting to come back.