32 years and still going...
32 years ago, on my first day on the job, I was given a form to fill out for needed desk supplies. I checked off "stapler" and the next day received a Swingline 747 Classic stapler. It is still on my desk. I use it every hour of every day I have hit it hard in frustration (not over the stapler, something else), I have stapled more than the 20 pages recommend, dropped it many times and have probably abused in other ways. It works just as well today as day 1. It is hard to think of any product as well made as this and as durable. Despite the fact that the company originally bought it (that company no longer exists), I think I will sneak it out the day I retire and quite literally use it for the rest of my life.