Keep Long Term:
One copy of your resumes; diplomas and certificcates; school transcrpts; receipts for car repairs and large purchases; mortgage and real estate documents; home-improvemen records; annual statements of stocks, bonds, mutual funds, IRA's or 401(k)s; and legal ducuments (leases, trust papers, etc).
Keep Seven Years:
Tax returns, bank statements, canceled checks and credit card statements.
Keep only the most recet:
Paycheck stubs, utility bills, mortgage payment, mututal fund prospectus, insurance policy. As you file the latest, throw out the last.