When is enough really enough?

Ever find yourself in a situation when you’re unhappy with how things are going? I know I sure do. What I always struggle with is how long do you ride out one of those situations before you say enough is enough? I mean there are times when your efforts seem futile yet you justify it because now isn’t an ideal time. Maybe it’s the down economy, maybe you just had a baby, maybe you’re in the process of moving… it could be any number of things. Are these really valid reasons or just excuses?

When do you call it quits?