I haven't had a chance to read through everything so if someone has already suggested these things...sorry (am at work and only on here b/c addicted lol):
*Can you pack everything you'd need to leave the house the night before? I do this on days I have to take DD to nursery so I am less rushed in the morning. Even pre-make her sippy of milk and have it in the fridge so I can throw her coat on and she sometimes has her cup in the car. Even breakfast on the go is alright now that she will eat granola bars or a baggie of cheerios/fruit etc.
*Can ds handle having breakfast out? I've gone to a diner or other kid friendly location and had breakfast out with her a couple of times. It gives me a place to have coffee and see other adults, still feed DD and be OUT. It's easier with help if you have a friend who could come along. But if not, it's still something to do.
*I've done local playgrounds etc. just to be out and about on some days when feeling cooped up. Even if we're only able to stay a short while.
*Like you said, Hop on a bus!
You can entertain/feed and do whatever needs to be done...ON the bus while you're traveling
Enjoy!