Wireless headphones. As long as the music is playing, you're not 2002'd. The second the music stops, you gotta rush back to the PC to relogin in again.
Won't save everyone, but it helped me yesterday to go do my nails while I waited for a 3K person queue to pass after an unfortunate ISP related disconnect. Only got 2002'd once, and because I recognized that it had locked out entirely, I got my spot back in line at 447.