Organizing Plug Ins?

For a start, right-clicking the FX or Instruments tabs in the browser, you can select to list by type or manufacturer which can be handy. Right-clicking on an individual plugin will let you add it to a category. In the little box that pops up you can select an existing category or type in a name for a new one. You can also remove a plug from a category in the same way. I have a category called Fav which lists my most commonly used plugs for example. Also, the insert plugin menu now lists the 5 most recently used plugs at the top which is a useful time saver.

You can categorize plugins any way you want using the plugin layouts feature and making your own layout. 
In the plugin browser tab drop down menu, choose "Manage Layouts..." and you can edit the layout and make your own folders to categorize the plugins the way you choose.

To do properly it's painstaking at first. I check every single plugin I have and carefully consider folders and subfolders, but then it's very fast and easy to find what I'm after.

Also remember if you have Sound Forge or Vegas/Movie Studio that you can use their fxs as plugins by adding the relevant folders to your vst directories.

I used the plug in layouts and did this last week even made more categories that made more sense when looking for stuff. It works very well.