I have 12 x 12 plastic boxes for paper, stored by theme, like food, holidays, etc. The stickers are in those paper holders on top of the papers. So if I look for Christmas, all the Christmas stickers and papers are together with the diecuts and other things I might need.
I do have a 12 x 12 paper storage thing with a handle with the letter stickers and it stays in my crop wagon and is always ready to go.
When I go to crop I match my papers, cardstock and stickers and embellies before I go. Since I plan each page pretty well, I even know what punches to take. Makes life a lot easier!
And I'm not spending my time at the crop trying to organize my page - the organization is done and I'm able to talk and visit more and enjoy the crop.