Canon, you can, if you remember the URL
One simple trick about picking a vanity URL. Make it easy to recall.
Canon are currently running and advert for a new camera with some fandangle special effects technology - let's you defy gravity while sitting on the ground - however they have opted to use the product model no. in the URL. Um. Ok. What was it called again?
Perhaps something simple, akin to 'what it said on the tin' is more apt? How about canon.co.uk/tree? That would have done would it not?
Sure, it might not have stroked the ego of the marketing bods in that pitch meeting, but surely having someone remember the ad, then actually going to the site as a result, would have given the said people a conversion boner?