Just like it's exhausting to run 10 miles, our willpower is wiped out at the end of a hard day. (businessinsider.com)
There is no better time than at the end of a hard day, when otherwise one may go to bed to think of one's troubles and toss all night in restless agitation. (religion-online.org)
If I'm super-tired at the end of a hard day and I decide to take a short nap, I feel guilty about it for the rest of the night. (rachelheldevans.com)