Yea, I LOVE to decorate. That's why I buy every house! I spent hours and hours in Oblivion to decorate and remember, you didn't have the "auto" bookshelves there. I had to manually put the books up. BUT, the books didn't have the weird physics either. They stayed closed in OB. I feel decorating in Oblivion was way easier though. First of all, the stuff stayed in place and it was easier to rotated and/or slide it around on a surface.
It takes all my patience to decorate in Skyrim. I still do it though. It usually takes me twice, but it all eventually stays in place. I need to do the drop items and leave the house thing. LOL
If you put enough stuff down, it stays
http://journeyofbokou.com/wp-content/uploads/2011/11/skyrimhoarding2.jpg
Woah, I'm surprised they haven't featured you on one of the "Hoarders - Buried Alive" shows hahahaha
I decorate like crazy.
Tip:
1. Make one pass around your home, dropping things on the floor near where you want to put them. Drop a bunch of stuff.
2. Exit the home.
3. Reenter the home.
4. Pick things up and arrange them, but do not put them into your inventory. If you put them in the inventory by mistake, you'll have to go back to step 1 for that item only.
This will let 99% of your items stay put where you eventually place them. Some items just wont stay put (Balbus' Fork comes to mind) but most of your stuff will behave.
Here is a great example. These stay put:
http://cloud.steampowered.com/ugc/614973792772592874/293A6CD87B584CDD5E49DA8F39044C8E8A1E4146/
http://cloud.steampowered.com/ugc/487750273417796880/9AE0A4E18EC7BC00527B1C775F594361D5FAC6F9/
Wow, how LONG did it take you to arrange all these bricks???????? NICE!
That works, you just have to do it right:
http://cloud.steampowered.com/ugc/487751575529498410/6EDFB15ABB19D60FB8DF554E4B64110B419918A8/
Oh sparkly! I love it!