When everything on our To-Do list is important and we are facing too many priorities we often have to regain focus to avoid a feeling of overwhelm.
It is interesting to note that the word 'priority' was first introduced into the English language in the 1400's as a singular. It meant 'the very first thing'. It remained singular for the next 500 years and only became pluralized in the 1900's, where we determined that we had multiple priorities.
When everything on your desk seems important and you are unable to define clearly what your true priority may be, try implementing a restricted time frame. Ask yourself... 'If I only had 2 hours left in my work day, what would need to get done?' When time is short we often are much better at cutting through to what really matters. If you're not under a time crunch (yet) then arbitrarily create one to help you establish the clarity you need.