Gabe from webcomic Penny Arcade chronicled his DMing yesterday in a post that reveals some interesting custom rules.
The group uses “Resolve Tokens” to track how quickly you can traverse the wilderness map. One token allows one hex of movement, and tokens can also be spent to evade random encounters or regain action points or encounter powers. This adds a tactical aspect to overworld movement: you can move more quickly at the expense of combat resources, or get bogged down in combat and end up losing journey time. Gabe suggests that it also encourages discussion and choice, which encourages roleplaying over combat.
Gabe also uses a slideshow on a large screen to display treasure, an innovative use of technology at the gaming table. He also uses a set of stickers to track status effects on miniatures.