Relationships cost money. 

It's not just about date nights at expensive restaurants, fancy shoes, or a new watch for Valentine's Day. 

It's moving in together, splitting the power bill, signing on to the rent. At what point in the relationship should you join your finances, and how should you go about it? 

Then there's the other side of the relationship - the part no one tends to plan for. The end of it. 

Are prenups just for the ultra-wealthy, or should we all have gotten one? 

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