Caitlin Clark (left) and Angel Reese are two of the biggest stars in college basketball.AP Photo/Tony GutierrezThis post originally appeared in the Insider Today newsletter.You can sign up for Business Insider's daily newsletter here.Happy Friday, it's a good one! Got a flight coming up? Text yourself your flight number if you have an iPhone for a cool little hack.In today's big story, we're looking at results from our business, tech, and innovation bracket and voting on the semifinal matchups.What's on deck:Markets: Some advice for the best place to save and invest your tax refund.Tech: Marissa Mayer has a new app that feels awfully familiar.Business: FTX founder Sam Bankman-Fried was sentenced to 25 years in prison.But first, a final four.If this was forwarded to you, sign up here.The big storyMore madnessChelsea Jia Feng/BIWe're back with the latest installment of our own March Madness bracket.