1. Write about your major infrastructure developments on your wiki or any other system you got, in an easy to understand language.
2. Start lecturing your co-workers about complex parts you developed.
3. Make sure you got full code coverage with unit tests.
4. Search for to-do comments and make sure you do those todo's.
5. If you got unfinished work and think it's worth something make sure someone complete.
And the most important: change your phone number :-) (Bazinga).