Paper Quandary

How do you store your paper?  Mine go in the three drawer 12x12 stacks.  Right now I have 3, but I really need a 4th.  I tried the whole rolling rack thing.  Didn't work because it isn't portable.  It has to be portable in some way.

The problem with the stacks is that I can never find what I need.  I had everything divided into girl paper, boy paper, and then 3 drawers of misc.  Who can even begin to try to find something in that mess?!  The other day, I was looking for paper for the Fancy Pants Design Team call.  I couldn't find any and thought I had very little.  Maybe I had used it all.    Tonight I tried something different.

I went through all of the paper and divided it by Brand.  Imagine my surprise when I found about 75 sheets of Fancy Pants paper mixed in!  Ugh.  I was so irritated.  At least I can find everything now.  I love using different paper collections from the same company together.  They tend to use the same color patterns and hues in many different collections.  This definitely opens up some new possibilities.  Let's see how long I leave it this way.  Any bets?!