Well, if you're anything like me, chances are they're actually right in front of your nose. Of course, you won't realize this until you've torn the house and garage apart looking for them, along with every other storage shed or car trunk that you have.
Usually, I'm looking for one specific issue-- the month and year which I never, ever remember-- because it contains some article that will help with a specific project. By the time I give up, figuring I'll never find it, and go ahead and puzzle through the project on my own, THAT'S when it shows up.