[PF] Making a Random Encounter Table

[Silus]

So I'm slowly gearing up for my next campaign, and I wanna see about making a custom Random Encounter table or two, but I've no idea where to start to keep things "balanced". Guidelines and suggestions would be greatly appreciated. I'm mostly looking for general suggestions as opposed to specifics, just something to get me started. You know, like whether the table should go from easy => difficult or vice versa, whether the creatures should be staggered, what are good % spread, etc.