The *best* way to store plain manila file folders?

Hi all,

Once upon a time you could buy a filing cabinet that worked with file folders of the non-hanging variety, but it appears that such times are long past. I've been trying to figure out how to store folders nicely in cabinets designed for hanging files, but nothing seems to work well:

* Shoving the folders in and hoping for the best makes a mess, because the folders in back aren't supported well and the ones in front slide down. Sticking small boxes in front and back kind of helps, but it's ugly and far from perfect.

* Putting manila folders into hanging folders works, but it seems terribly inefficient, especially for small folders. The David says you shouldn't have inhibitions about filing a single piece of paper. Further, it doubles the size of your files.

What tricks to people here use?

Thanks,
Josh