This is a question that has baffled most of us for years and years.  It's wedding season and we get those invites to weddings of friends and family members and that usually means spending some ca$h. 

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So how much is enough?  Wedding experts say that if you choose not to pick something off of the couple's registry, then a U.S. Grant---aka $50 is the bare minimum you can give without appearing like a cheapskate.  Now you know!