I suspect I have a few kindred spirits amongst you all when I say that I get more than my fair share of, shall we call politely it, "unsolicited marketing email." Even the stuff we opt-in for gets tiresome, particularly because so much of it is dreary and uninspired.
So, imagine not just my Surprise but my delight, when I received the following email flyer from JEM, a Montreal employment agency putting out feelers for their clients interested in ticketing, packaging and light assembly work. (Please ignore the "Francais"; it's a link in the original that translated the box copy.) 
That's all there was. No additional text, no extraneous words. A simple message well-delivered.
And if the folks at JEM really wanted to knock it out of the park, they should put together a few real-life models of the above and hand deliver them to a well-targeted list of some of the city's more likely respondents.
Nonetheless, with this one, they had me at sello (tape).