Last month, Angel Wilkes came down with a cold that should have kept her bedridden for several days. But despite suffering from a sore throat, fever and nausea, the 28-year-old still answered customers' calls, assigned tasks to contract workers and handled administrative duties. She allowed herself only a single day of rest once she reached a point where she could hardly lift her head. "If I don't work, I don't eat," says Ms. Wilkes, who started Children's Party Plus of Charlotte, N.C., in 2009 after her contract position at a nonprofit ended and wasn't renewed. Read it here.