Here is a quick way to relax and refresh yourself - take a mini mental vacation.
Close your eyes and take a nice deep breathe. Imagine yourself standing on your favorite beach. Create this image as vividly as possible. Pretend that you are really there. Pay attention to the colors around you - the blue sky, the brilliant turquoise water, and the white sand. As you breathe in you can smell and taste the salty mist. Enjoy the sound of the waves lapping on the shore... maybe even the sound of some seagulls flying by. It is as if you are there right now.
Each time you imagine this special place you can feel yourself relax more deeply and quickly. You only need a minute or two to experience the relaxation and to clear your mind. This makes a great way to take a break during your hectic day.
Have fun with this and enjoy your travels in your minds eye!