I am sorry to say that I do not.
However, I often want to clone me self and like to have 36 hours per day! At least it feels this way. Not only because I am an engineer; but I am a business owner who have other obligations to attend to survive. Some of other duties besides designing are payroll, demonstrations, employee benefits, marketing, responding to clients, proposal writing, negations, human resources issues, quality control checks and deal with vendors. While most of our engineers go home at the end of the day my partner and I often spend few more hours preparing and catching up on administrative STUFF.
In my years of experience working in the engineering field, rarely we are granted the proper schedule and time to complete projects. Coupled with the fact the clients do not pay proper fees. This leaves us under the gun to produce engineering that is in my opinion lots of time not suitable! Hence lots of problems during construction due to omissions, owner directed changes, etc.
I cope by setting priorities. This always works. Also accept the fact things will never get done in one day. Explain to boss and clients that more time is required. Give your reasons. You know them best.
I hope this helps.