oh yes... Matilda is an extreme active child & we barely use the pram for anything other than longer walks (when she's really tired)

We do a few things:

1. use the shopping trolleys for the entire trip...the straps in them seem to hold them in better sometimes. During the trip use morning tea/arvo tea time and feed them independant food (Matilda gets a bakery bag with a bacon & cheese roll for our weekly shop)

2. When they learn how to undo the straps continue working on it & have a few trial runs where you can leave if they tantrum. ie tell them they have to stay in the seat & if they don't you will leave. And then leave if they don't.

3. When going out for shopping go to a westfield where they have the ride on cars (Matilda LOVES these) she'll stay in them for over an hour :shock:

4. always bring a bag of distractions to use BEFORE they try to get out.

Good luck!!