Ads, ads, ads. Pop-up ads, more ads playing in front of a movie than movie trailers (which are, essentially ads, themselves), ads in schools, ads above urinals, junk mail, spam, televisions playing ads in the checkout line, those dudes who stand on the street corner with those big red arrows and dance around (Every time my job gets me down, I just think of that poor dude. Granted, some of them get into it and do some crazy tricks with their signs, but most of them seem like they'd rather fed into a wheat thresher.), advertising on tombstones Ads are almost literally everywhere these days.
But that's still only almost, that's not good enough. As any good advertising executive knows, the best campaigns are those that the average citizen cannot escape
Advertising on the inside of elevator doors: When people are waiting to reach their floor, they are desperate for something to read, anything they can lock their eyes onto besides their fellow passengers. You have a captive audience staring at a space on the inside of elevator doors for anywhere from a few seconds for a few minutes. I'm surprised I haven't seen this in effect already.
Also, advertisers could really take advantage of the elevator environment and people's states of mind while they are confined in small metal boxes with other human beings. ("Don't you wish your fellow passengers used Right Guard? They probably wish you did, too.", "When was this elevator last inspected? Consider State Farm Life Insurance.", "If you've ever felt like you need to GET THE HELL OUT OF HERE RIGHT NOW try the new Ford Exploration SUV!")
Advertising at stoplights: Once again, a bunch of potential customers line up and stare at the same area for a period of time. This could generate a lot of much-needed revenue for cities. I envision mounted weather-proof LCD televisions at each major instersection, playing commercials timed precisely to be in sync with the length of red lights. This may also help the flow of traffic in that people would be less likely to to plow through red lights if they think they might miss a really cool Mountain Dew spot; people wouldn't creep up constantly on red lights, since it's cleary not going to change until the ad is over; and people wouldn't sit around, unaware that the light has turned green, since the end of the commercial would signal that is time for them to go.
I've already seen this implemented to some degree. In San Jose, at the corner of Bascom and Hamilton Avenues, is a recumbent bicyclist who simply goes around and around the intersection, passing in front of the parked cars as he does so. Attached to his bicycle is a sign advertising apartments for rent. He does this all day on weekends as far as I can tell. I wonder if he and the sign-dancer guys ever get together and argue about who has the worse job?
Literature sponsorships: In cinema, product placement is as common as the wads of chewing-gum on the theatre floor, why not incorporate that into literature as well? I'm sure most modern bestselling fiction authors wouldn't require that much monetary persuasion to have their protagonist enjoy their martini with Bombay Sapphire Gin specifically. Heck, why stop at fiction? Why even stop at non-fiction? Go straight to reference! Merriam-Webster could add in an extra definition to "refreshment" to include "The invigorating taste of Limon
Word-of-mouth: Everyone knows that the source people trust most is word-of-mouth. Sadly, at this point, the advetising industry does not have this medium under its control. Advertisements can be filled with market-speak, commercials can saturate the airwaves, reviewers can be paid off, or even invented entirely, but word-of-mouth requires that you have a product or service that people actually want to reccomend.
Obviously, advertising firms need to identify which people are most trusted ad have the ability to disperse glowing reviews of their client's wares to a large number of potential customers. Where better to go with this than to weblogs? The only thing keeping bloggers from running pop-up ads on their site is that they're annoying and stupid, why not be a little more subversive about it? For about the same price as a month worth of banner advertising, you could pay off a whole slew of bloggers to mention a product in a positive light and describe their own personal pleasant experiences with it. The bloggers people read most are articulate, have a loyal population of readers who trust them to speak the truth, and probably aren't making any money off their site. A virtual untapped goldmine lays just waiting to be exploited.
Hopefully no one in the advertising industry actually reads this thing, or else we may all be doomed to a terrible future similar to Minority Report, in which Tom Cruise freely roams our malls. Now if you'll excuse me, I don't want to get any more of this delicious Togo's sandwich on my keyboard.