Not real source. You are the source. Not much here that can help us.
Here are some other ideas I hope you find helpful.
First I have been working diligently on de cluttering my personal and business life. I have read so many simplifying and de-cluttering and efficiency books I almost have a clutter problem with all the books on the subject. (Cured that recently too with the Kindle 2.)
I run three business. One brick and morter and two online.
I was getting over four hundred emails a day and was drowning in mail and spam. So I utilized ideas / suggestions from several sources to cure my problems. From the Four Hour Workweek by Timothy Ferriss we started using detailed faq’s lists on our websites and an auto-responder that answered many questions so we would no longer have to reply to as many emails. For the ones we do answer the questions are predictable and we saved the answers as email drafts that way we just cut and paste and all done.
For the Spam we ran our eight email accounts into one google mail as they have the best spam filters and you can reply from the email address to which the mail was sent so they dont know that anything is happening. And suggestions from the life hacker Upgrade Your Life: The Lifehacker Guide to Working Smarter, Faster, Better by Gina Tripani has some interesting ideas for sure.
Keeping your inbox empty we use suggestions from Stress Less and Zen to Done by Leo Babauta and you would not believe how much better you feel when things are under control.
But it is you who must Work the system or you will be overwhelmed again.
A much more detailed program is used in Getting Things Done David Allen book, but the above is kind of the simplified version that I currently prefer.
And for just getting rid of all the clutter in your life any of the books from Peter Walsh, How to Organize (Just About) Everything, and Enough Already, are great even though they tend to recover some of the material from his other books somewhat but thats not a big deal since the info is worth repeating. Another good author but she covers pretty much the same thing is Julie Morgenstern. The books by Koch on the 80/20 principle are also worth looking into.
For the paper clutter in my life I have a digital sender scanner and have scanned over four full file cabinets into Adobe PDF computer files. I have done this with pictures too as you can also save them info Jpeg and Jiff files. While there are tons more books out there and I seem to have most of them, these are the best to get things under control and to get you the time to do the things that matter to you.