I do similar. I've always been one to save everything so I've developed a system around it and managed to have less stuff in the process.
Everything gets duplicated electronically. Pictures scanned to jpg and if known the date and/or time taken gets tagged in the exif data as well as comments. I also make note of the scanning software and date/time scanned. This makes the pictures order and sort in programs like Picassa or kphotoalbum. Reciepts, bills, account statements, etc get scanned to tif's and orginized bepending on how/where the item is used or the account it is for. Where possible I sign up for paperless statements and just download the statements from the websites. All important documents are scanned, birth certificates, degrees, social security cards, certifications, etc.
Once items are scanned I decide if they are to be kept in paper form. All picutres for example and stored in a photo storage box with a few special ones in the fireproof safe. All recepits are kept and stored in the fireproof safe in file folders named to match the folders on the drive. All the important documents are kept in a folder for the person, one for me, on for my wife, one for our son. Lessor important papers are shredded and trashed, bills, older bank statements, etc. Then I have one small bx for each person, and one for me and my wife for combined items since we were married. Those small boxes get all those things that we just can't throw away, old school days books, etc. We made the rule that it has to fit in that one box and have stuck to it so far but still have some more stuff to sort through. This has helped to reduce the clutter, for exmaple I decided I didn't need any of my report cards in paper since I had them scanned and the paper was all faded and messey anyway due to being done on old dot matrix printers so those were trashed.
Then everything is prioritized in my home DR plan. After family and pets comes the laptops and/or backup drives, then the firesafe, then the photo and keep boxes if there is time/space in the event of fire,flood, etc.