
Lilly Gold is known for products that do double- and even triple-duty; their Sit 'n' Stroll ($229.95 on the manufacturer's website) arguably goes beyond to encompassing even more functions, and all at a price point well below what you could spend on just a stroller.
It's a car seat -- suitable for children 5 to 40 pounds, use forward or rear-facing -- with stroller parts that easily release to convert and make you mobile in a flash. It's also FAA certified for use on airplanes, and given its ultra-portability would work just fine as a dining booster as well. If you do a lot of traveling, this is the contraption for you. Er, for Junior.