I always hope to hear an idea that I like better 
than mine. I organize mine alphabetically by 
series, and then by character within series. When 
a series has multiple incarnations, I order them 
by release - for example, my Miyu OVA cels are 
all together and put before my TV cels.

But where my system kind of falls flat is group 
cels. . . o_0;  When I'm trying to organize by 
character within series, what to do with group 
cels? Usually I wind up putting them all at the 
end of a series's section, or if one of the 
characters in the cel is *much* more prominent 
than the others then I put it in that character's 
section. . . But I don't like how they seem to 
not fit.

Many Sharp Smiles,
--Drac