I have a serious obsession with custom content and if you want to share it then check out the sites and creators below!
Morphead_High_End_Condo_Stuff_Pack A truly amazing and completely FREE custom made stuff pack!
Anubis_Under_The_Sun Awesome hair and clothing can be found here!
The_Sims_Resource Pretty much anything you could ever imagine can be found here!
Newsea Amazing hair!
All_About_Style Gorgeous clothing for stylish sims!
Sky_Sims Yet more amazing clothing!
Lorendia_Sims3 Even more awesome clothing!
The_Sim_Supply A lot of building items and some breathtaking custom lots here!
Breyetesims Very unique and pretty clothes
Scones_for_cream_tea Mmmmmmmmm cake!
Hope this helps feed your own addiction and if you know of any others i should be checking out please let me know!!