Go on. I mean honestly, how many? 
I realised that I might have a slight calendar problem when I decided that I had to make this one. On November 24th. I've reined myself in now and have come to accept that there is no way on earth I'm going to manage to make the felt tree AND all 24 ornaments in 6 days. But how many calendars do we already have, poised in readiness?
- Cardboard calendar with traditional pictures. Chosen by DS1. Christmas wouldn't be the same without it.
2.Playmobil Dinosaur calendar for DS1. He doesn't know about it yet and this is the first year we've done one with little toys in.
- I actually already had a playmo calendar, the Woodland Christmas one, bought off ebay last year in a fit of madness after getting sucked into the MN Playmobil Enthusiasm Thread.
I set it aside for this year and then got the Dinosaur one as part of an offer at Toys R Us. I think it'll have to wait until next year. DS1 can't have two playmo calendars. Can he? Can he??
- My mum gave us a wooden train calendar with lots of little numbered drawers for chocolates, but since DS1 is train-mad and 3, it's stayed unused as yet because he'll just get it down all the time, and as stated, This Is Not A Toy. It's already sustained minor damage.
- My MIL will give DS1 (and for all I know, 11 mo DS2) a chocolate calendar, as she does every year.
That's too many, isn't it? I think in practical terms, that's going to be one cardboard, one playmo and one chocolate calendar and the others will be saved (or made) for future years. And of course, DS2 will be old enough sort of for a cardboard one of his own next year. How many are operating in your household?