As an Orc War Hero I keep trophies from certain quests. In my newly appointed room in Jorrvaskr I keep my Wolf Armor on my Bed and in the display cabinets I have Wuufrund(sp) and two ordinary scimitars I minted up till Legendary and enchanted. One is a 20 point Frost Damage named Icingdeath and the other is a Soul Stealer that I called Twinkle. They look pretty epic laying crossed over in their. I still have to find a dagger worthy enough for the 3rd display cabinet. Perhaps Mehrunes Razor when I find it.
Also, I use my house in Whiterun for storage of junk I don't need. Being an Orc I figured he is quite messy. So after raiding Bandit Holds and Camps I dump all my wine/ale/spirits bottles on the floor so there is liquor all over the front of the house. Off in the kitchen you will find that my orc loves cheese and steals it whenever he sees it. There is a huge mound of cheese growing in my kitchen.
My potion room is filled with books I dump on the floor. There is literal piles of them. I wanted to read the story of Orcs and Orcsinium and it took me about 30 minutes to find it.
Upstairs in the quest room is where I keep my Dragon Bones, Scales, Skulls, and Pelt.
In my bedroom I started stacking all my ingots in nice clean piles but with the house bug I stopped doing that and it's just a big pile of ingots. I have a copy of the Lusty Argonian on my night stand

You know, for that good bedtime reading. I also have some Clay Pots from the Sacred Tomb of Ysoralder.
The only thing that my Orc is a little OCD about storing is his Armor and Weapons, each in their own trunk.
Ha Ha funny thing is I just married Aela (*Alright, High-Five*) and I can't imagine her disgust when she moved in and saw the filth I live in, then again she did marry an Orc.