6. Checking Accounts
There are the obvious checking account fees like monthly charges or ATM use, but there may be a number of hidden fees lurking in the fine print. WalletHub’s 2014 Checking Account Transparency Survey highlights the best and worst offenders.

7. 401(k)
Most people are aware of the Expense Ratio Fee for managing their 401(k), but there are a number of additional fees that most don’t know about. In fact, a recent NerdWallet survey found that “…92.6% of American adults have no idea just how big their cumulative 401(k) related fees are—to the tune of over $150,000.”

8. Buying a Home
Don’t get us started on closing costs. Seriously. We don’t want to talk about it.