I have a 3.5 year old and am about to have a baby. So I need to buy a car seat! I just don't know what to get to make things more convenient and/or cheaper with less hassle. For my son I used an infant carrier for the first year, but I remember him getting very heavy to carry in it and eventually we just started taking him out of it instead. What I want to know is, with a 3 year old am I going to be able to handle carrying around a carrier? Will I be able to handle a 3 year old while carrying around a baby? Should I just buy one of those infant to booster seats? (all in one) And skip the carrier altogether? What did you do? How did it work for you? I also have not figured out how I will go grocery shopping with a carrier, if I put the carrier in the seat of the cart, my 3 year old would ride in the basket, then where would I fit groceried? lol. Obviously I am new at this. Tell me what works for you!!!