quit while one's ahead

Don't try to improve on something that is already accomplished, as in Those drapes we hung are even enough-let's quit while we're ahead. This idiom also implies that further action runs the risk of spoiling something. Also see leave well enough alone.

Common Names:

Name	Pronounced	Usage
KristÓF	KREESH-tof	Hungarian
Emma	EM-ə (English), EM-mah (Finnish), E-mah (German)	English, French, Italian, Spanish, Swedish, Norwegian, Danish, Icelandic, Finnish, Dutch, German, An
Mindaugas	-	Lithuanian
Godiva	gə-DIE-və (English)	Anglo-Saxon (Latinized)
Dionysios	-	Greek, Ancient Greek
Keelin	KEE-lin	Irish