I got a BOSU for Christmas and seriously can't stop using it. I also can't stop photographing it. So excited for my #pink #BOSU! @bosu_fitness @acefitness #personaltrainer #bosublast #RCMtraining A photo posted by Rennay Cooke Marshall (@rnay225) on Dec 12, 2014 at 4:30pm PST I bounce on it while I watch tv. I think about it when I'm away and every time I see it I pretty much have to put my hands on it. I feel like we're in a teenage relationship. Seriously obsessed with my #BOSU. Seriously...I can't stop using it. #bosublast #RCMtraining A photo posted by Rennay Cooke Marshall (@rnay225) on Dec 12, 2014 at 1:09pm PST Not long ago I started thinking about how I could carve my niche as a trainer here in Louisville. I was initially putting my focus towards online training for flexibility since I do still have a day job and that little Ironman coming up and also because I knew I didn't want to work at a big gym making $10 an hour ...