1.
The exclamation points are overkill. You've got a great line, no need to be insecure about it. Grade: B.
2.
A local plastic surgeon.
A tad long, but very memorable. Grade: A-.
3.
I've seen many "drop your pants" dry cleaner slogans, but this one wins because of the "prompt attention" ending.
EDIT: "Drop your pants here and receive prompt attention." Always look to make any tagline shorter. ALWAYS.
Grade: B-.
4.
Not original, and unappetizing. Grade: D.
5.
Local cement company.
So? So can every other cement company.
Grade: D.
6.
But what do I get out out doing business with you?
Grade: C.
7.
Brilliant.
Grade: A+.
8.
Hey, Harvard, right?
Grade: B.
9.
Rhyming can be good.
At least their slogan tells you what they do.
Grade: B-.
10.
Of Superior, Wisconsin.
Usually, I take off points for vulgarity.
But here, it works perfectly.
Grade: A.
11.
Of San Francisco.
WHAT?!?
Grade: F.
12.
And, the best local tagline in history.
It's so good, that, after using the line for nine fucking years, Northampton's Sofa King was reprimanded by the UK's ASA, because, "[the ad] could be interpreted as a derivative of the swear word 'fuck', which consumer research had found to be a word so likely to offend that it should not be used in ads at all, even when it was relevant to the name of a product..."
BULLSHIT.
Grade: A++.