D.:
Both my husband and I are very much committed to keeping our paperwork in order. IMO, It takes a 2 person committment for it to work. Once we merged our financial/paper lives, we realized that our individual systems were essentially the same. This made the transition much more simple.
We use labeled hanging file folders for everything.
HOUSEHOLD BILLS: Everything has its own folder. Cable, telephone, cellphones, financial statements including bank, retirement, investment accts (1/acct), insurance (auto, homeowners, life), etc Once we pay the bill, we file the remaining part of the bill in its cooresponding folder and we keep it for 3 months with the exception of certain things like real estate taxes, paystubs, income taxes, financial statements etc. Investment accts we keep 1 year at a time and then purge keeping just the year end statements. Since my husband was a victim of ID theft about 10 years ago, we make sure to shred anything that would be risky in someone else's hands. He either (1) takes it to work and deposits in a secured shred bin, (2) we manually shred it or (3) we visit area shred events when we have alot. The kids have become a big help with shredding recently, of course, with supervision. When bills come in, it goes in a centralized location until someone has "desk time" to pay bills, file, organize, purge. Desk time happens every 1-2 weeks depending on the mound of stuff needing attention.
RECEIPTS: We keep all receipts and check any charges against our monthly bills. Once its been checked against the bill, we discard the receipt as long as it doesn't have anything we might want to return, save especially for large purchases, etc. We place those receipts we want to keep in a envelope and go through it periodically. Christmas receipts we keep in a special Christmas envelope. Family knows that they better ask for the receipt if we haven't already provided a gift receipt by the end of Jan or they are out of luck. At first keeping all receipts was a adjustment but it does help with budgeting and return hassles especially as stores are becoming more strict with their return policies.
MEDICAL INFO: Each family member has their own medical/dental/vision folder. Any EOB is filed in the person's folder. Since we are back to having an HMO, paperwork is lessened. Having these folders helps to organize immunization records, dates of last exams, informational materials pertinent to that individual etc. I try to purge these folders at least annually as they fill up quickly. At the end of the year I can tally up out of pocket costs for income tax itemizations, health care spending accts etc.
FOLLOW-UPS: I have a greeting card box I bought years ago from Current that holds all my cards. Rebates we keep in the same centralized location as the receipts until we receive the rebate then toss. Store discount mailers, school cafeteria menus, preschool calendars, etc go on 1 of 2 bulletin boards in our home.
We do our best to purge unnecessary mail immediately. At this time of the year we tend to hold onto most catalogs in a deep bottom nightstand drawer since we do alot of internet catalog Christmas purchasing. Besides the kids love to look in all of the toy catalogs to put together their "wish lists".
My husband comes from a family of organized people. My F-I-L has held onto some of the silliest things. Not long ago he gave my husband a receipt for guitar lessons he took back in the late 1960's/early 70's. My mother used the "toss it in a shoe box" method and could never find a thing. Within the last several years, my sisters and I had to settle the estates of my single, no kids aunt and my mother. My aunt was a former legal secretary with everything buttoned up to a "T". My mother had allowed me as the executrix to step in and organize things once she became seriously ill. I cannot begin to tell you how each of these situations were made so much easier by having well organized systems in place especially in times of high stress and responsibility.
I wish you luck. Getting a system in place that works for your family will be the hardest most time consuming piece. Once in place and working, I believe it will save you time and headaches in the long run.