I took a peek in my shop vac and found it clogged up with MDF gunk, so I decided to design a dust separator I could 3D print. This is based around a 5 gallon pail and lid and takes 2-1/2" press fit hoses.

I dumped out the content of my shop vac and cleaned it all back up and 99% of the material ended up in the dust separator, it seems to be doing a great job. Now I can add a dust bag to the vacuum without worrying about going through bags too fast, that should help further reduce dust in the air.
You can grab the stl files from my Thingiverse page, along with the fusion 360 f3d files in case you want to remix it for your own tools.
https://www.thingiverse.com/thing:4668759
This cost around $5 for the bucket and lid, much cheaper than a dust deputy or dustopper and it seems to work quite well.