When your husband signs you up for a free four-night, five-day trip in exchange for listening to a two-hour timeshare presentation, you pack your bags and go.  If that sounds like a cringy-but-totally-worth-it trip, read on to see how we also saved tons of money on food and Ubers. But if you timidly opened this because you’re slightly horrified that two Christians even went to Las Vegas, this post is probably not for you. Feel free to close it, judge us quietly, and move on with your day. Haha. Just because it’s called the City of Sin doesn’t mean it’s a sin to go there. On the other hand, my…