These are seats for toddlers. The first works for toddlers up to 40" and 40lb. The other two work with your existing car seat. Note that I do not have any of these and haven't tried any of them. (But I probably would if I didn't already have six car seats.)

The sit-n-stroll
This is a combination car seat and stroller.
For more info see http://www.tripleplayproducts.com/
I saw some of these in the airport and know friends
who have them. Some like them, others don't.

The gogo Kidz Travelmate
This is an attachment that basically adds wheels to
a regular car seat to turn it into a stroller.
For more info see http://www.gogobabyz.com/

The Traveling Toddler
This is an attachement that straps a car seat to a suitcase so that you can pull them together as a stroller.
For more info see http://www.travelingtoddler.com/


-Kuovonne