Don't get your blank on.

If you find yourself writing "Get your ____ on!" stop. Go get a coffee or take a walk or just do anything but look at words on a computer. You are probably tired, have probably worked too much today and now you are running low on creativity. Come back later and you'll think of a better way to say what you have to say.

This also applies to any use of the "Lions and tigers and bears, oh my!" construction. If you find yourself too exhausted to think of any way to introduce what you're writing about besides stringing things together in this overused construction, it's probably best to step away and come back later.