Article continues below advertisementKelly Ripa has an unconventional way of speeding through the grocery store - true crime.During the Wednesday, October 15, episode of Live with Kelly and Mark, the 55-year-old talk show host was listing ways grocery stores get shoppers to spend more money when she confessed her secret to getting in and out of the supermarket quickly is to cue up a murder podcast."Background music makes people shop slower," Ripa explained while reading off of a sheet of paper with talking points. "Which is why I always listen to murder podcasts when I go grocery shopping.