Mike Cameron will always be a Mariner in my book. But the defensive whiz was fairly well traveled towards the end of his career. But he has also been remarkably consistent in his signing habits since retiring.
When sending out autograph requests, I always like to try to get a sampling of the teams a player played for, if possible. And the more obscure the better.
Better yet, I was able to get cards signed from two of my favorite sets - 05 Donruss Champions and 03 Donruss Team Heroes. While I'd never be crazy enough to try to build a complete set, I do love getting them signed whenever possible. The large open space on the Champions just screams for somebody to sign their name in it.