really, the only thing you can do with an a4ld is take really good care of it. 5-speed swap is still the best(would take you over 20 mpg easy), but i understand that may not be in the cards.
for being involved in land issues. education and involvement are key to separating responsible 'wheelers from the drunken yahoo's
oh yeah, and
for taking apart and auto trans. thats one job i wont tackle