Zio_the_dark
The dark one :)
In my current campaign I use XP to keep a track (but PC have no XP on their sheet) but sometimes even if they meet requirement for the next level (from an XP point of view) they may take on one additional journey without leveling (seems like a milestone approach). I'm using 4th edition right now and reduced xp gain from monster by a third but reward xp for everything played out of battle (even if player don't see xp on their sheet I do tell them when they have done something I consider rewarding)