The American Civil Liberties Union offers the Pocket Constitution of the United States for $5.95. Coupon code "POCKETRIGHTS" bags it for free. With free shipping, that's the best price we could find by $2 for a personal copy of this historical document. (We also saw it for free in April, although that deal also included a copy of the Declaration of Independence.)
There are many ways for seniors to get cheap -- and even free -- entertainment and services.