Complimentary Crap is constantly striving to find the best free samples by mail as well as coupons for our visitors. The value of giveaways or "free samples by mail" cannot be overstated or under-estimated.
Get a free Nikwax Polar Proof sample. Play their Webquiz and you can get these Nikwax samples, if you get an answer incorrect, you can change it to the correct answer. Even if you have received a Nikwax sample in the past, every three months you are eligible to claim another.