I often wean myself off of coffee so that my sensitivity to it returns.

One tip for those trying to reduce or stop their coffee in-take: you don't have to go cold turkey.

Just gradually reduce. I'm always surprised at the amount of people who put themselves through misery trying to abruptly stop. You could even go as gradual as reducing your coffee intake by 25% a day. After a few days it'll be a gentle let down.