At the moment, I have budgeted ?150 for Christmas (including stocking, Santa and present from us for under the tree) and ?100 for her birthday next day. But that is my starting point every year - for basic budgeting purposes.
I know Santa wants to bring a bike this year, we got the last one on sale so I am hoping to do that again. I have already spent ?16 on her stocking but probably won't spend much more on that - maybe another ?10. I think I will be giving her a tracksuit I got on offer from us, so ?13. And I have to get her new Christmas Eve PJs yet, so another ?10ish (cos I don't think I'll have time to sew a pair).
As for her birthday, again, I will probably not spend a lot this year, maybe another ?20-30.
Last year, we spent about ?170 in total on it all, and she was delighted with all she got. She got a very full stocking (I find lots of interesting small things all year), a huge lego set that she loved, a couple of outfits, new PJs, a board game, books, and loads of craft materials. But with her birthday so close, it is tricky trying to balance so much in 2 days and having the chance to get something at other times in the year. So I think that is plenty to spend - regardless of whether we have more to spend or not.