I can't say I've had too many positive experiences with expecting / asking lawyers to file or folder materials for KM purposes in any folder structure. This type of activity is outside their workflow, and inevitably the materials you get are very limited, quickly go stale, and / or are not referred to later. Attorneys simply have too little motivation to routinely and successfully carry out this activity, in normal circumstances. My opinion is, if you had a detailed enough taxonomy of papers to be helpful in finding or browsing work product, it would inevitably be too complex and difficult to use from a filing perspective. In other words, it's generally not worth it and won't work (not to be too negative!)
I've taken two approaches to the "sample litigation papers" need. The one most comparable to what you are thinking of took all of the pleadings from a half-dozen cases, and grouped them in case timeline order by the most commonly used types of papers, at the following level of detail:
A. Initial Pleadings
- Complaints (link)
- Answers (link)
- Replies (i.e., in response to counterclaim, not a reply brief)
- Preliminary Injunction--Motion
- Preliminary Injunction--Memorandum in Support or Opposition
- etc. etc.
For more substantive drafting and legal research purposes, we use document search and retrieval tool West KM, which has the huge advantages of A) automatically drawing on all of the litigation documents saved to the document management system and B) having its own automated document categorization engine. It also supplies case validation signals, and lets attorneys locate firm work product based on case and statutory authority cited in that material, which is a huge time-saver. The major effort required once it's set up is on user training and adoption.
If you don't have West KM or a comparable product such as Lexis Search Advantage, another approach you might want to consider is setting up "canned" searches of your document management system. iManage actually has fairly sophisticated capabilities in this regard, although they aren't as user-friendly as one might hope. Modern enterprise search tools also typically provide canned search capability, which can also obviate the need for lawyer filing.