as the day is long
crazy as a loon
“So are you to my thoughts as food to life” (Shakespeare).
similes also uses "like"
sleeping like a bear
As old as my grandmothers toes and twice as corny.
All I wanted was a 45, a stinking 45 - the record or the gun. I'd even settle for the damn malt liquor. - Al Bundy.
In Like Flynn
On you like white on rice...
not sure if that is a similie or not.
what about "going to hell in a handbasket" (what is a handbasket anyway?)
Like mustard on skunk... Honest
Live simply ~ Love generously~ Care deeply~ Speak kindly