Every day value

I suspect that Woolworths Floreat haven't yet read my post on the difference between every day and everyday. Having both variants on either side of a single sign has either a deep philological meaning, or indicates that the author didn't know which was correct so tried one of each. At least this way only half the people passing the sign will see the discrepancy, assuming nobody turns around.

Unfortunately, this inconsistency may bring the signage to the attention of people who don't know which is correct, but will deduce that in seeing two versions one must be wrong.

This all leads to the question of which sign is actually correct. Does Woolworths provide value every day, i.e. every day value, or is the value they provide so commonplace that it's a routine occurrence, everyday value? I suppose the Woolworths' marketing department could argue for both, though the latter isn't the most enticing of claims.