Much of the growth in a perceived middle class, Nijman argues, is based not on income but on consumption driven by credit.
January 31, 2010. 1  Many people retain old financial documents for much longer than necessary, while others are quick to toss information that can help them later. Keep old tax returns for at least seven years and paycheck stubs until you have received your W-2.
What to keep after filing your taxes and how long. Knowing what information to save and for how long can be confusing. As a general rule of thumb, keep tax returns and related documents for at least three years from the April 15 filing deadline.nowing what information to save and for how long can be confusing. As a general rule of thumb, keep tax returns and related documents for at least three years from the April 15 filing deadline.