Meanwhile, pity the poor semi-colon (;). Here’s a key smackdab on the home row of your keyboard. Your right pinkie gets a workout with the P key and the Enter key and the Slash key (/), but rarely is called upon to hit the semi-colon, where it rests. (You may recall that the reason our keyboards are laid out like they are is because with old manual typewriters, you needed to actually slow down typists to prevent key jams; thus, the home row became home to many infrequently used keys. My first typing class, in 7th grade in 1979, was actually taught using manual typewriters.)
So, kill two birds with one stone: Spice up some of your secure passwords with a semi-colon or two. That satisfies the requirement of having punctuation in the password, while also being an easy key to type. Be sure to vary the semi-colon’s place in your secure password: the beginning and end may be easier to remember, but the middle is more secure.