I just heard about these article and i think this is a great concept, which involves all parties (men and women)

http://www.sueddeutsche.de/politik/sieben-jahre-ehe-wenn-der-vertrag-auslaeuft--1.328980

It´s german, so i will just exlain:

There is a politican, who wantet to make the marriage only lasting 7 years long. After the 7 years, the marriage would end automatically.

I personally think this i great. It´s a constant dread game. Unfortunalety the femisim was too strong to adapt this stuff in the real wordl.