Not quite there yet - but great ideas for a few years down the road:) The Ultimate back to school organization guide. This woman does it all, and her blog is full of ideas for keeping her kids' school stuff organized at home.
Don't waste time sifting through piles of worksheets - save yourself the headache and create a “master book,” a tool that organizes all your papers and keeps them all in one place. Tackle your mound of papers by sorting through each one, tossing what you don't need and keeping one copy of every important worksheet. Place them in a 3-ring binder with dividers for each month.