LOL yep, we slipped up and now I'm set to have 3 under 2 in a few months
I don't find getting out of the house too hard, I just had to develop systems that worked ie. using the twin trolley at the supermarket and Maya walks, carrying them in their capsules when they were smaller if it was only a short journey, and configuring the carseats in the car to make it easiest to get them all in and out.
I am worried about getting out of the house with 4. Mostly it will only be 3 as Maya will be at school, but I think puku baby is going to have to live in the sling coz the gremlins still need to be strapped into the buggy, trolley etc. or else they run riot.