(do something) with (your) eyes closed

to do something very easily.

I've filled in this form so many times, I can do it with my eyes closed.

• [child/house/mother, etc.] from hell
• Children should be seen and not heard.
• chill out
• chill someone to the bone
• chill someone to the marrow
• chill to the bone
• chill to the marrow
• chime in
• chink in armour
• chink in someone's armour
• chinless wonder
• Chin up!
• chip in
• chip in something
• chip off the old block
• chip on shoulder
• chip on your shoulder
• chocolate box
• choke off
• choke off something
• choke up
• choke you up
• chop and change
• Chop chop!
• chosen few