A couple of times in the past year, I've had a strange sort of book luck.
See, we have a book sale at the library, both for items the library itself has withdrawn and also for donated items. Books are a dollar, fifty cents if they're trade paperbacks. You might imagine I come home with more book sale books than I ought, though I do try to exercise a measure of control.
Two times in the past year, I've walked past the book sale and found the exact book I was looking for, for the low low bargain price of one George Washington.