We put our sons car seat in the Burley Solo and rode with him on the sidewalk and bike paths* when he was a baby. In fact it was easier the smaller he was, he had a really small car seat up to 9 months that reclined very well, he slept, well, like a baby
Great way to get around, get groceries etc. We didn't have a car back then so that was basically how we got around and sure beat manhauling the huge stroller on and off the bus.
We let out a little air from the Burley tires to give a smoother ride.
* not on the road in traffic, as my MIL liked to tell her shocked friends. 
PS. I forget if we put a helmet on him, but I suspect we didn't when he was very small. There was basically no way he could get thrown out of the Burley. I seem to remember a folded towel on either side of his head for support when he was sleeping.
Last edited by lph; 06-12-2009 at 07:55 AM.
Winter riding is much less about badassery and much more about bundle-uppery. - malkin
1995 Kona Cinder Cone commuterFrankenbike/Selle Italia SLR Lady Gel Flow
2008 white Nakamura Summit Custom mtb/Terry Falcon X
2000 Schwinn Fastback Comp road bike/Specialized Jett