Still have 4 more vacant birdhouses. I didn't realize one had an OLD nest/material in it -- sometimes, I don't have to take them out, but this one was harboring some sowbugs (no idea HOW they got up there), so I cleaned it out. Another one, when inspected more closely, had a spider's nest near the ceiling. When I poked it out, a very scary looking black spider scuttled out, and yet another one, there was a half-expired carpenter bee buzzing around in it. I don't know if it was the spidersilk caught around it's feet (maybe a spider already bit it?) or the dusting of DE in the box. I knocked it out of the box, and later it was gone, so I guess it recovered and extricated itself.
The one the Carolina Wren is using now used to have a paper wasp nest in it earlier in spring that I knocked out with a yardstick.
More nests in neighbors trees and shrubs close to the property lines -- Robins in Eastern White Pine trees and Grackles in a Juniper.
No sign of House Wrens yet, though I'm starting to hear them occasionally.
Chickadees usually nest in one of the birdhouses. They, along with Titmice and Nuthatches visit the feeder all the time though. Cardinals, too, are nesting somewhere in the woods behind the house. I'm on the look-out for the Mourning doves that always make a nest on top of the weeping cherry as well.
I need to find my ladybug friends. I have some aphids in my house on my eggplant starters. 
Oh and the fungus gnats are back in full force. 
I feel like a proud poppa cigars for everyone. 
These babies are POTTY TRAINED!