The sign for "everyday"
is variation of the sign "tomorrow"
Do the sign "tomorrow" twice rapidly and it means "everyday."
See:
"TOMORROW"
This sign can also mean
"daily," "common," or even "regularly."
EVERYDAY:











Sample sentence: "Do you think
children should change their underwear daily?"
EVERYDAY (side view)




Notes:
Just recently I watched a friend of mine use the sign "everyday" to order a "regular" size drink.
She was signing to her Hearing friend who was interpreting her order at a restaurant.
See: REGULAR