Are we terrible parents because, frankly, we are both knackered and don't think Ben will notice if we do NOTHING? Plus, he has a bazillion toys anyway and our place is not big enough to take anymore stuff. More importantly having a party would involve tidying up the house, which is just crazy talk.
I'm thinking maybe brunch at a kid-friendly cafe.
Here's the man himself checking out the ladies.

Ugh.
