We've all done it. I even wound up with a really cool-looking pen I just couldn't resist when I saw it poking out of a box at the checkout of an office supply store. Naturally I didn't go in the store for that pen, and I have to admit I can't even recall exactly how it got into my bag. Understanding and tapping into this propensity for impulse buying is one of the strengths of the bricks and mortar business world. But can it become a common feature on the Internet?

Like lots of things we just sort of intuitively understand, a straightforward definition of impulse buying is difficult to come by. But you can get the gist through the words most folks use to describe it: rash, instinctive, not necessary, uncontrolled, not always smart (with the buyer characterized as an "unwilling victim"), regrettable, fun, adventurous, irrational, and oh yeah, impulsive.

In the Ivory Tower, lots of academic types have tried to get a handle on exactly what impulse buying is and why people engage in the behavior. That turns out to be a very un-simple task. There are impulsive purchasing patterns and cognitive purchasing patterns; there is “reminder impulse buying” and there is “pure impulse buying.”¹ I won't even go into how impulse buying can be a variety of compulsive buying. Whew! It can all get very confusing.

I can tell you that humans are prone to purchase certain classes of products on impulse. In general, folks get impulsive about commodities (for example, food, clothing, shampoo) and make these impulsive purchases when their normal internal control monitors are compromised. People also get impulsive about stuff on sale. Ever notice sometimes price completely overrides need? I mean, only in other people, of course. And pure impulse buying is unplanned. It just happens. At least, it does out there in the bricks and mortar world.

So what about on the Internet? There's a fellow, Paul Romanchuk, who has this scheme to make online shopping a more 3-D experience in order to stimulate browsing and impulse buying.

Visitors [to a website] are made to feel as if they are walking down aisles perusing the goods. Marketers can also set up certain "trip wires" that send out appropriate messages - and these can go beyond what would normally occur in a regular mall. For example, if the user is browsing a certain section of the … store … a book on the shelf may open and close to attract the attention of the browser. Or, if you're in a music store … and you walk by a particular section, you can hear a voiceover promoting the latest release, says Romanchuk.²

I bet you can hear me groan, right? Given the current level of technology, I don't even want to think of the download times involved and the waiting required as a visitor walks through this virtual store, or of all the plug-ins Joe and Josephine Consumer are going to have to download. Simple it ain't, and simple is the key to online sales. Plus, study after study proves that most people by far don’t enter an online store to browse; they enter to buy. In other words, even if everybody had broadband and all the software pre-installed, Romanchuk’s idea still is another example of putting a “cool” tech idea ahead of what the online shopper wants. Do I reeeeally need to say any strategy aimed at increasing impulse buying online must work not only with the currently dominant level of technology but also, and even more important, with the psychological and behavioral patterns and processes of online customers?

The only example I can think of that allows for even quasi-impulse purchasing is Amazon.com's combination of recommendations of related products and its 1-Click process. You’re presented with an item that’s interesting, and you know that with a single click, you've bought it. According to a poll by FreeRide Media, experts say the ease of one-click purchasing can indeed foster impulse buying.³ They found that 58 percent of adults admitted they would spend up to $100 on an unplanned, unnecessary purchase over the Internet.

IF impulse buying is going to find its niche in the web world, it will only happen when the simplicity of the site, combined with impulse-class products, allows for true impulse purchasing. When thinking enters the equation, you just can't call the purchase purely impulsive anymore. If a site takes you to your shopping cart to review your selection, you have to think. If it then offers you the opportunity to put that selection in a buy-later category, you have to make a decision. If you have to follow a series of links to locate a product, you are making a whole series of decisions. If you have to fill out a form with all your billing and delivery information, you are light years away from impulse.

Compare that to grabbing those mints, tossing them on the counter, then painlessly and without further consideration, swiping your card to pay for all the things you were going to buy anyway, plus that one bit of rash extravagance. Your challenge is to create an environment where that can happen without turning your site into a something akin to a bad video game.