with (one's) eyes closed

With very little or no difficulty; in a relaxed, carefree, or effortless manner. It took me a little while to get used to this job, but now I could do it with my eyes closed! You should ask Johnny for help—he does this level of math with his eyes closed.

Common Names:

Name	Pronounced	Usage
Lyon	['laiən]
Daveth	-	Cornish
Jernej	-	Slovene
ÁSa	-	Ancient Scandinavian, Icelandic, Faroese
Aubert	['ɔ:bət]
Khan	-	Urdu, Pashto