The old adage, "a dollar saved is a dollar earned." Has never been truer than it is today. We live in a hyper capitalistic world with tons of competition.
Therefore it's highly recommended that you shop for your necessities on a regular basis. This saves you money and keeps businesses honest, competitive, and on their toes.
Every year you should at least quote your primary insurance companies if they give you a quote higher than the inflation rate. You can do all of this on your day off. Any outstanding bills, like say medical bills can also be done at this time.