I recommend that you adequately maintain and protect you tax records after you file your taxes. You will need the information in case IRS requires documentation and/or substantiation.
It is wise to keep your records for at least three years. However, if you have any questionable deductions, I would recommend you keep the records for seven years.
Any records pertaining to your home, rentals, or other long term assets such as investment transaction, should be kept until the item is disposed of. Then keep the records for the three years after you report the sales on your tax return.
You records do not have to be in any order. However, I would recommend file folders or envelopes labeled to aid you in finding information you may need that pertains to your tax return.
Important records include all income receipts, invoices, bill, credit card and mileage logs, canceled checks, and proofs of payment. Other records are needed to support other deductions or credits taken on your tax return.
IRS Publication 552, Recordkeeping for Individuals, is available at irs.gov if you need further information.