uqslug, maybe take some of the sachet packets with you of formula one that you use here if needed? That way you will only need to take a few with you. Most hotels have port-a-cots available. We just co-slept if they didn't when we've been away from home. Sterilising bottles... if the hotel is self-catering, they should have a dishwasher & I would just use that! Otherwise you could boil water on the stove and boil the bottle for 5 minutes to sterilise it. If they don't, I would ask the hotel if there was anyway to boil bottles once day or something. I'm sure they would have alternatives for you. Maybe room service could chuck the bottles in their industrial dishwasher... those things go to extremely high temperatures and would do a good job there.

Taxis, in most countries you can ask for taxi's with car seats. In the US you can hire car seats with the car rental company. Also its legal in most places to have the baby in your lap in taxi's.

I think more people don't think about doing big trips with babies because its full on.... but in hind sight. I think doing this at that age is easier than once they are moving more!! Toddlers are very hard to take on planes and overseas. Good luck!