We have found that with baby stuff, having the proper equipment is essential, especially when traveling. We wrote about our BabyEssentials list previously, but we have some revised observations now that we're past the baby stage and have a very tall 2-year-old. Since we don't have a car, we walk a minimum of 5 miles per day and about half of that with the stroller. Our small umbrella stroller, which we loved, broke just before we left for the USA in December, so we brought another one here that we had in storage. Unfortunately with our daughter at the upper weight limit of this new stroller stroller, it is impossible to navigate these treacherous sidewalks and our daily travels are a pain, not to mention increasingly dangerous as the wheels like to get stuck. Thankfully, we've found a great alternative and we've picked up a Mountain Buggy Urban Stroller holds kids up to 70 lbs (I will need serious help if I am trying to push a kid that big, bit it's great for our 33 pound/15 kg 2 year old!). I am so excited!
One thing that we planned for perfectly is a car seat (~that unfortunately doesn't get much use here). When our daughter grew out of her sweet little baby seat at 9 months, we graduated directly to the Sunshine Kids Radian80 Convertible Car Seat which is FAA approved for airline use, the only foldable car seat, and the only one with a steel (rather than plastic) frame. This amazing seat fits kids up to 80 lbs. No need for a larger seat or a booster, which new studies are finding are not much help in a crash anyway.
Yes, we bring this car seat through airports and on the plane with us. It's heavy, but it makes for a well-behaved kid in her own, familiar seat. When not in use, we fold it and store it in a suitcase. Can't do that with any other car seat!
Surprising as it may seem, the Radian 80 also fit rear-facing into the back seat of our Mini Cooper when we were living in the USA. I wasn't sure that the combination of a tall car seat and a small car would work, but it did and at 5'-10" tall, I could still squeeze into the front passenger seat.
We learned our lesson with the stroller. Montevideo sidewalks are a beast to navigate and very hard on strollers. Our first stroller had a good run of 9 hard months here. Kids equipment to purchase new in Montevideo is expensive and many times not the best quality. Plan ahead and purchase in advance (before you get to MVD) when looking for the big items necessary to travel with babies, toddlers and even older kids.