Making a difference by constant comment.

Every time you are in a computer store or retail outlet that sells computers. Mention Linux in a positive fashion. NOT asking in a whine "whydoncha..." but a calm assured informational stance of:

It would be a Really Good Idea to be selling computers with Linux pre-installed. And also a Good Idea to be selling the Linux magazines,books and software. Currently folks around here have to drive X miles to your competitor. Where I spend dollars X on books and magazines etc. Further explaining the potential $ per Linux user they would bring into their store by carrying the Linux items.

It certainly is a better use of our energy than some other methods.