I just use Ralen Hlaalu Manor, it's big and it got racks with I like to display all my loot.

not to mention the dead body is still there.

but can you buy a place?

no, but there's some mod that allows you to buy a place.

Those are mods. I have two residences, one in Balmora, and one in Vivec. That last one is really big, and even has a waterfall inside. There are more residences outthere. I think you can have one in every major city on the map. And of course there's the stronghold they will build for you, when you advance in one of the great houses.

okay here's how you get a cool daedric cuirass. Go to the scamp. Have a telvannit dust helm with cuirass binding power, and use it. Take the bound cuirass in your inventory and sell it to the scamp. The value should be zero so buy it back. Then the cuirass will last foever plus it will have constant effect powers! THis only works with the cuirass thouhg, i don't know why

the patch fix that thing. now your bounded items can't leave your inventory.