Crafted stuff. Basically I make +LA and +Bow/one-handed damage almost exclusively. I carry around utility gear, i.e sneak, persuasion, regeneration gear as the situation demands it. Boots and shield are always frost or fire mitigation as high as I can get it. I craft a my weapons with frost/fire and soul trap and switch them off as needed. Really the only time that is necessary is when I fight dragons. I don't use any of the stock guild gear for the most part. The only truly indispensable items I have found are Azura's Star, Mask of Clavicus Vile, and the Jester's chest piece.
If you are playing on PC, check out Frostfall mod. You can get upgradable cloaks, backbacks, and camping gear. It is a good immersion mod. I use this with Basic Human Needs mod and then you can turn off fast travel and global map. Makes the game a lot more immersive and more like a regular RPG.
This post was edited on 1/21 at 8:15 am