Yes, it's that time of year again. To celebrate, here are some of the better April Fool jokes/advertisements/whatever that I've found so far.
First, what happens when you use gin in your sauna, instead of water?
Next, Burger King in France has a mouth-not-so-watering idea.
It's a worthy successor to their gourmet one-fry-at-a-time advertisement last year.
And finally, the good people at Vintage Wings of Canada have compiled a wonderful series of 'spoof' World War II propaganda posters, composed especially for April Fool's Day this year. Here's just one example.
There are many more at the link. Very funny, and recommended reading.