This is a quirky business. I go from being unable to breathe with cramps in my wrists to watching my e-mail inbox with bated breath.
It's times like this, writers should put to good use. Instead of loafing on the sofa when you get a breather in freelance writing, take the down time and do:
-and most of all, write.
Work on your novel or your e-book or journal.
I have a client that I can write endless amounts for right now but they take forever to pay so I find myself not wanting to invest that time just writing articles. Instead it feels more lucrative for me to do some of the things I don't normally get to do like work on my novel.
In a day it can be a freelancer's feast again and I can be so stuffed with work that my own stuff will be pushed aside again so best take advantage and write.