It is a lot easier to say you are going to
limit your collection than to actually do it :)
I swore I was only going to buy sailor moon
villians from now on, well in the last few weeks
I have bought the following cels:

two chibi chibi cels
Two cel of Sailor Moon and Chibi moon in the 
black dream hole
a cel of Shinoski (I know I am spelling it wrong)
from Crayon shinchan
an eyecatch cel from marmalade boy
an opening sequence cel from marmalade boy
Three cels of Yuu from marmalade boy
Two cels of Jinny from marmalade boy
A cel of Miwa from marmalade boy
Three cels of Yuu and Miki together from marmalade
boy (including one very special cel that I won't
say anything about since it would give away the
end of the series)
A cel of Ginta from marmalade boy
Two cels of Atchika from Tenchi
A ryooko cel from Tenchi
A cel of Usagi and mamoru together 
and I know there are more that I am forgetting
(I have to go out and buy new cel books today
since I have bought so many cel lately!!!)
I cringe when I think of how much money I have
spent the last month on cels.