I like to create a template for certain classes of sounds that I know share a basic structure, the best specific example being volume enveloping. I always liked that the good old VFX series synths by Ensoniq had envelope presets you could use, like piano, organ, strings, drums. So I sometimes create such envelop init patches for the synths I work with. It's a big time saver.
Now let's hear some of yours so I can steal them.

