Patterns: Great self promotion
37signals.com
37signals.com
It was one of the most frustrating things, coming from a security research/startup background and going to work at a relatively large network security software company like Arbor Networks, that we had no venue to "show off" that didn't involve pitching our actual product. One of the great things about leaving Arbor and starting up with my friends was that I got my name back; instead of writing white papers and designing product demos, I got to work on and talk about stuff I was doing for love, not money.
The caveat is, you should be capable of presenting the mind portfolio without appearing to be a smart donkey. Spelling out your mind portfolio during a general chit chat with potential customer over a cup of tea, is what I do.