Have not been keeping up with the old blogosphere, so there is plenty of interesting work out there that I did not notice when it was new and fresh.
Map Text Layout from FrDave.
Where-in different columns are used to convey information to players and the DM respectively, and information rows are sorted by "obviousness". For example, a you might have basic room description as a player text box, and the size/secrets of the room as the DM. Monster physical description, and then monster stats, etc.
There is definitely something there about organization that I want to look into more, and being spreadsheet/box oriented, this appeals to me.
Classed based XP from Jeff Rients:
It seems to me that class based XP charts can be a fun addition to the game, particular in a more sandboxy setting, where you want the players to develop their own goals and plans. It may be important to try and structure the bonuses in such a way as to direct play in a positive way, where the party tries to work together, rather than against each other. I particularly like the idea of a pilgrimage XP bonus for cleric based classes.
While reading the comments, I also had the flash of how the "barbarians" of my Deepest Sea setting function. They have a gift based economy, with all of its attendant virtues and vices. Played properly, this pushes barbarian characters nicely into alien "otherness" without having to larder on a set of rules to make that happen. (not that there is anything wrong with more rules)