Interesting n-grams

All n-grams brought to you by the GoogleBooks Ngram Viewer.

time and space versus space and time salt and pepper versus pepper and salt cars and trains versus trains and cars day and night versus night and day ham and eggs versus eggs and ham fair and balanced versus balanced and fair open and honest versus honest and open throw in the sponge versus throw in the towel alternative reality versus alternate reality Keep America Safe Hold your horses Conventional wisdom uniformly at random for your viewing pleasure fresh new horrors pink elephants rampant sexism versus blatant sexism race condition versus race hazard weary of versus wary of leftist/centrist/rightist Lamaze sunshine and rainbows versus rainbows and sunshine