Another tip – once you’ve identified things you want to buy, and if you don’t need them urgently, start tracking the prices that Amazon sell them for by looking up on uk.camelcamelcamel.com. You can be alerted when the price drops to a certain level. We’ve saved hundreds on pushchairs and car seats by waiting until they’re available at a good price.
It’s even worth checking prices on Amazon.de as we saved quite a lot importing from Germany compared to from the UK for a Cybex car seat (its a German company).