Tip 1: Set up to-do lists.
Let users bite off tasks one at a time. Linked-in does this well with their progress meter.

Tip 4: Plan your day in blocks.
Help users plan by giving them an approximate idea of how long tasks will take.

Tip 5: Work on your most important task first.
Make it clear to users what their MIT is. Prioritize, prioritize, prioritize.

Tip 6: Turn off all other distractions.
Tamper down all of the related/correlated messaging and functionality

Tip 8: If other things come in while you’re working, put them in your inbox.
Rather than diverting or disrupting the user along the way, store up related or next steps and present these either at the end or if/when the user opts out of the current task.

Tip 10: If interrupted, make a note of where you are at.
Automate this process and let users pick up from where they left off last time.

Tip 11: Take deep breaths, stretch, and take breaks now and then. Enjoy life. Go outside, and appreciate nature. Keep yourself sane.
No design insight here, just good advice :)