After you switched to convertible car seats, how did you go anywhere? We're just about outgrown the carriers, my problem is when I go get groceries and stuff I keep them in the carriers and just put them both in the cart and stack groceries around. They can't really sit up well enough to put them in the cart with no support, and I would really like to avoid the "push/pull" system. Also, what about getting them in and out of the house? Did you just carry one, then go back for the other? Should I try and wait it out as long as possible before switching (wait until they can sit unassisted?)
DS would probably be ok, but DD will be awhile yet....
Re: Switching Car Seats?
I don't have any actual experience with this yet, but once DS is able to sit in the cart, could you carry DD in a sling or something while shopping? You could park by the cart corral and use a cart from there to get you from the parking lot to the store.
That's just something I have thought of doing, since I'm already worried about how I will ever go anywhere by myself with the babies and the push a stroller, pull a cart method doesn't sound like something my coordination skills can handle - those carts are unruly and strollers can be too!!
I just switched my boys a couple weeks ago. They were almost at the limits and I could not stand carrying the infant seats anymore. They are both sitting well now. I have a Buggy Bagg cart cover that I use at the grocery store and they sit in highchairs at restaurants. The cart cover and high chair covers help them sit a little better. I also have a mei tai so I can wear one if I need to.
I get them in and out of the car one at a time. I cant carry both anymore.