To keep all your records and receipts buy a good 4 drawer filing cabinet at a yard sale or thrift shop. This saves me a lot of time. When the IRS audited me, for 2 years back, I pulled out my bank file from 2 years ago. It included all my checks and statements for that year, and I had my taxes for that year in another file. I was ready to go the next day if necessary!
Also, the computer company who fixed my computer "wiped me out of their system". My receipt saved me another $61 to fix the same problem!