Bunching Tasks

One of the ways that I save time
is to accumulate similar tasks
like answering email or sending snail mail 
and complete them all at one time. 

Brian Tracy in the book Million Dollar Habits says
“Efficiency experts calculate that
if you have ten similar tasks to do,
and you do them all at once,
one after the other,
by the time you get to the tenth task,
you will be working so efficiently
that it will be taking you only 20 percent of the time
it took you to do the first item on the list.”