Washington, Feb 19 : American actor Michael Douglas has decided to dole out advice to Hollywood''s couples, urging them to be nicer to one another in order to save their marriages.

Douglas, 64, has himself been married twice, and he admits that the one way two stars can keep their relationship going is to show a little kindness to one another.

The actor has been married to Catherine Zeta-Jones since 2000, and he believes kindness is what keeps a marriage strong.

"I think being kind to each other (is the key). A lot of times we are nicer to strangers than the people that are close to us," Contactmusic quoted him as telling HollyScoop. com. (ANI)