Reciepts what to keep what to toss

[Inspired by Reggio]

I am anal and I keep ALL my receipts that could possibly be considered a 'shared' expenses between business and personal use ... I have heard too many stories about providers who have been audited and only had receipts for the business and than no way to 'prove' that the expenses were not for family as well and since we work from home this is especially important for us .... so with my groceries if I am writing off $7000 worth for 'business expenses' I want to make sure that I have at least 'double' that for my family in additional receipts ... so last year my TOTAL grocery receipts were just over $20,000 plus I kept any of our 'eating out' receipts to show that in addition to that we spent additional X on feeding the family ... and we are a family of 2.5 two adults and a stepson whose eating here part time.

As for organization ... I keep all my receipts in envelopes labeled with the 'expense' they relate to ... grocery expenses, toys and equipment, office, advertizing / marketing, field trips and outings ... etc.

Basically the only reciepts I do not keep are those for our clothes and family entertainment and family gifts and stuff like that ... cause we have to keep all our vehicle receipts again to show that what I am writing off as business expenses does not included my 'spouses' vehicle and so forth