Anything film, on second thoughts - not everything, but at least:
135 colour and b/w
120 (6x6, 5x9, 6x12, 6x17, 6x24), also both chromatic and not
4x5 film (and hopefully paper soon)
Polaroid, pack and instax
127 when I can get it
And maybe 5x7 in the not too distant future
Would not count out 126 if I it comes back