I haven't had to chain up any of my rigs for so many years I can't remember, but then I've almost always had 4 wheelers of one sort or another.
For the past 4 or 5 Winters I have used the Les Schwab chain "borrow"....pay for new chains each Winter, get your money back at the end of the season if you didn't use them.
Since my wife and I are headed for Wenachee tomorrow morning, it looks like it could be touch and go as to whether or not I'm going to finally be forced to lose my "freebee".