Differentiating Birthday and Christmas presents

[BabyLlamaZen]

My child turns 1 in November and I'm trying to work out what to buy him, but realise Christmas isn't far around the corner either.
I've already started to buy some little bits and pieces. Is there a way you work out what to give for Birthday? Is there an easy way to differentiate and make special? E.g. should we do a big thing for Birthday and more little things around Christmas?

Ideas in general would be great!

(Dh and are both summer babies so by the time christmas rolls around we want/need different things! As kids we always got outside stuff in summer!)

No advice about how to differentiate (do you need to?) but as a November baby myself please buy your child summer fun stuff either for their birthday/Christmas or just because! I wanted things like trampolines, water guns etc as a kid and never got them, because my mum wanted to me to be able to use my presents as soon as I got them and was convinced I’d have gone off whatever I’d asked for by the time summer rolled around and it would be wasted. I can see her logic, but it sucked seeing my spring born siblings getting summer toys when I didn’t!

Something like a smart trike would be good at this age. They can sit in it and be pushed for walks over the winter from 1 and by summer may be able to start peddling a bit in the garden but still enjoy being pushed to the park.