[AccessD] version control

Hello all:

Does anyone have any good ideas for database version control?  I've tripped
myself up so many times on out-of-date versions of my databases.  I now have
all my dbs check for a small 'key' file in the same folder as the current
version of the db, so that if I try to open up an older version in a
different folder, it won't run.  But every once in a while I have to copy
the key file so I can view two db versions simultaneously, then of course I
sometimes forget to delete the copied key file, and two weeks later I find
I've got two different 'current' versions of the database.

Doug Steele