So now that you know the most common mistakes, how do you avoid them?

FORBES: Eight Common Tax Filing Errors And How To Prevent Them

One of the most common mistakes people make is accelerating principal payments on their mortgages.

FORBES: How To Profit From The Fiscal Cliff

One of the most common mistakes is to raise the stop instead of lowering the entry level.

FORBES: Mastering the Basics of Stop Placement

The most common mistakes involved painkillers like paracetamol, morphine and diamorphine.

BBC: Patients 'at risk' from drug errors

One of the most common mistakes that investors make is moving into and getting out of cash too late, locking in big losses and missing out on big gains.

FORBES: Don't Dash Into Cash

Read the most common three mistakes people make on the issue in the HBR blog.

FORBES: 3 Most Common Mistakes: Confusing Management with Leadership

One of the most common estate planning mistakes that people make is joint ownership.

FORBES: Top 5 Reasons To Beware Of Joint Ownership Between Generations

One of the most common market research mistakes I see is when clients look to test their new business idea.

FORBES: How To Save Your New Business Idea with Market Research

One of the most common and critical mistakes you can make during your divorce is to accept the first settlement proposal in the hopes of getting this over with as quickly as possible.

FORBES: Welcome to Divorce Dollars and Sense

Ms Seybold reckons that most companies make two common mistakes about their customers.

ECONOMIST: Innovation and entrepreneurship