It's not a win just because they say yes. You need to stay in close touch with your boss, colleagues, and clients to make sure everything continues to go smoothly.
Remember that flexibility works both ways. Be willing to cover job emergencies, but make sure to take back the time off when work is slower. Nobody else will set those boundaries for you.
Be prepared for some resentment from others who want better work-life balance themselves. If confronted, gently remind them of the sacrifices you make for the schedule, whether it's checking email from home or earning less money. Don't apologize, or your co-workers will conclude that you have something to feel guilty about. Instead, be confident and perhaps they'll follow your example.

