I suggest using following directory structure for every project:
Project Name\
Backup\ — directory for backups
Analyst\ — models archived, with timestamping
Databases\ — all Contributor applications dbs + pad,common
Databases\ — it’s sometimes good to store db’s in the same place
Documentation\ — model related documents
Access Tables\ — whether you are using some mechanism for creating access tables (VBA +Excel is a miracle cure), or just store them in txt files – it’s the place
Elist and Users\ – excel files for each contributor app, with following worksheets: elist, users, rights. Required for moving applications to another environments
Translations\ — multilingual model? export it all here, it’ll save you from troubles later
Technical Requirements\ — documents, describing created model, interview protocols and such
\Model — Analyst libraries
\Analyst library Name
\Contributor Application Name
\exp — an _exp library for contributor application. See more on imp,skl,exp
\imp — an _imp library for contributor application.\skl — skeleton library
\Scripts — automation
\Bat Files — good old bat’s for all gtp’ing and so on
\Logs
\Contrib Macros and Links — export