Another vote for the Strider. The only con is it's wide. I need to use disabled aisles at the checkout etc. A capsule is fantastic. We didn't have one for my first but did for #2 and #3 and it's been so much easier to do everything.

Car seat, something that rearfaces to 12kgs is your best option. Those seats usually last until the child is 3 or 4 so it's good value aswell.