I level far, far too fast. Especially now that I know the game so well. Anyone know of a mod which is simple and slows skill gain a bit?

Checkout the http://skyrim.nexusmods.com/mods/1175, it looks more complicated than it is but it doesnt come at purely vanilla settings. The skill rates are but the skills are uncapped(theyll go passed 100). But you can set all of those however you want.

For something simpler: http://skyrim.nexusmods.com/mods/13433 but Ive never used it before myself so ymmv(checking the comments on the nexus and workshop, it seems to work fine).