Many people make New Year's resolutions to be better, but is there any way to make a promise to yourself and make it stick?

Legal analyst Jordan Charness says it can be done by bringing in someone else.

"If you think about it, a New Year's resolution is like a contract, a promise" said Charness.

So turn that promise into a contract.

"Promise your wife you are going to lose 20 pounds in three months. If not, you are going to pay her $300."

Watch the interview for more.