When traveling, have baby supplies shipped directly to your hotel
We've talked before about avoiding packing hassle by shipping diapers to your travel destination, but good friend and frequent traveler Cory Doctorow (of BoingBoing and Craphound fame) took it a big step further with great results:
Don't suppose I'm the first to come up with this, but I've had amazing travel success pre-ordering baby supplies (diapers, formula, powder, wipes, organic food -- anything bulky and/or hard to come by at a 7-11) from Amazon and drop-shipping them to our hotel in advance. We don't have to fill a suitcase with consumables, and Amazon beats grocery-store prices in most cases (especially for us, since this stuff is always lots more expensive in the UK).
After our wedding we spent a couple days in Houston en route to Honduras. Rather than bring a month's worth of baby stuff to Toronto, shlepping it to Houston, and thence to Honduras, we ordered EVERYTHING - -- formula, rice cereal, food in jars, diapers, powder, wipes, cream, pop-up crib, baby bathing suit, sunscreen, etc etc -- from Amazon (along with a $10 wheeled duffel-bag to put it all in!) and had it shipped straight to Houston. It worked INCREDIBLY well, and since we left a suitcase worth of wedding-clothes, etc, in Toronto after the wedding, we were able to go very light indeed.
You know the best part? They left all of the packaging at the hotel (along with a generous tip) and it was taken away by housekeeping.
Related: Peapod travel bed review