Grammar Force: 1st Installment

Picture this: you're driving down I-35 on your way home for spring break on Sunday afternoon, trying not to slam into all of the other college students who are doing the exact same thing, when all of a sudden you see this thumbing its nose at you from a billboard for Academy:

BAM! Fender bender. "Everyday" (one word) is an adjective, it means "ordinary," as in "everyday low prices" or "these are my everyday Crocs, I reserve the super ugly ones for Sundays and holidays." Contrarily, one would use "every day" (two words) if he wanted to specify a particular set of days (because "day" is a noun and "every" is the adjective that modifies it). For example: "On which days do you have the right stuff at low prices?" "We have the right stuff at low prices every day!" (I suspect that this is the angle Academy was going for.) To be fair, that distinction is a little tricky. The next mistake, however, is as basic as 2+2=4.

I'm a Petco member, so I regularly receive emails from the national franchise advertising their specials. I usually just delete them right away because I hardly ever go to Petco anymore, especially since I started buying cheaper catfood at the grocery store (gasp!). There's one email, though, that's been hanging in my inbox since yesterday morning because I was too mortified by the subject line to delete it:

Does "invited" belong to me? And if so, how exactly does one possess a verb? I might never know. Perhaps a contraction of "you" and "are" (YOU'RE!) might have been a better way to express Petco's meaning. Maybe.

Clearly the advertising industry is in desperate need of some passionate (or at least half-way decent) proofreaders, so why can't I find a job? Ah well, if I can't get paid to edit, I'll just do it out of pure snobbitude. There are sure to be plenty more mistakes where these came from.