WARNING: It is NOT recommended to use more than one of these mods, thats WHY they are separated.

So I finished my TES5 esm/esp reader/writer and decided I would completely automate my previous mod:

http://www.skyrimnexus.com/downloads/file.php?id=2081

And make it apply to ALL followers, so here they are, they come in 3 flavors with all combinations.

Legend:
E - Essential - Sets the NPC/Follower to Essential so they don't die.
WA - Wear Anything - Removes the NPC's default "Outfit" allowing you to equip them with anything when they are following you
WFC - Wear Fine Clothing - Makes all followers default to Fine Clothing as opposed to the Steel Armor, or Nothing if using WA
LCR - Level Cap Removed - Removes the pesky level 50 maximum level for followers

Warning: When you relieve companions of their service WITH "WA" they default to their outfit, which in this case is now nothing, so your companion (while not with you) will appear naked (if you have nude mods). Only while accompanying you will they be equip with what you give them.

Installation:
NMM - Installation should be fairly simple, download and install

Manual - Extract ESP to Data directory
Add "bEnableFileSelection=1" under your "[Launcher]" section in "SkyrimPrefs.ini" if it is not already there.