"The Forgotten Soldier" by Guy Sajer
"Samurai! by Saburo Sakai
"Last Stand Of The Tin Can Sailors" by James Hornfischer
"The Blond Knight Of Germany" by By Raymond F. Toliver, Trevor J. Constable
The Ringworld series by Larry Niven
anything else by Larry Niven
anything by David Gemmell
anything with Calvin and Hobbs
The real Clive Cussler books (before he had the audacity to get too old)
old stuff by Gordon R. Dickson
The Stainless Steel Rat series by Keith Laumer
The Deathworld series by Keith Laumer
various woodworking and handloading books
and in a class by itself: "Armor" by John Steakly
...and someday, "Where Troy Once Stood" by Iman Wilkens, which currently sells for as little as $190 and up to $500, used.