Have you ever tackled a DIY (Do-It-Yourself) project and in the end regret how it turned out? Or when you read the online forums it said the average time was thirty minutes and two hours later you’re still at it? Well I have and half way through I wished I would’ve paid someone to do it. Life is full of failures and with it inevitably come regrets. In the end you have two options: learn and improve or sulk and stink. Retirees tend to look back more than others and some of their wisdom may be worth listening to.