Working while grieving

Jake was a member of the family for over 14 years and my best writing buddy. He was always in my office. We lost him unexpectedly and miss him dearly.

"There is sorrow enough in the natural way, From men and women to fill our day, And when we are certain of sorrow in store, Why do we always arrange for more? Brothers and Sisters, I bid you beware, Of giving your heart to a dog to tear." – Rudyard Kipling

What strategies do you use to manage your emotions and still get work done?