Work or Life ~~ do something while waiting ~~

I have a similar working dilemma like most people do, that is I need to wait for other people's work before I can begin my real "task". During this waiting time, we play our fingers, drink, eat snack, take a walk and show our faces everywhere...Does not help.

Anyhow, I need to maintain optimism. So I list supporting activities that will keep me busy and take a good use of the waiting time. 

Here they are:

To my point, no matter what activities the list has included, as long as they can cheer me up, I will do. Sometimes I just simply push myself to a 15 minutes nap to re-charge.