At the start of each season, I use a red Sharpie to mark a dot on (approximately) the sweet spot of each iron. Sort of a visual reference.
Speaking of red, I always mark my balls by underlining the ball number with a red Sharpie. I just like seeing a little ‘red’ on my ball. Quirk, indeed.
Unconventional?
I don’t wear a glove. I like to have full feel of the grip AND I don’t get a white hand!
I too look at the hole when lag putting and at the ball when I’m expecting a chance to hole out from 12 ft or less.
I use a Seemore putter to always be lined up, I cover my golf balls with numerous dots (in a pattern) to have a dot to focus on when striking ball.
Oh, and I always carry.
Apart from that, nothing I can think of!
Love my seemore!
I don’t know why I wear a glove, to be honest… I’ve just always done it.
Wouldn’t be without a Seemore. Brilliant and well priced 
Ive been thinking about this, and don’t think I do a ton of unconventional stuff…
Though I don’t drink, and with the people I play golf with that’s plenty unconventional…
Come on, man. I think you are just holding out.
Lucky socks? Use the same tee until you don’t hit a fairway? Always mark your ball with a quarter with Washington facing the hole? Arrange your clubs in your bag from most to least favorite?
Haha, I’m a disappointment!
During high school golf, I’d listen to “garden grove” by sublime before I teed off…
I’ve started saying cmon big cat to my putter as I walk to the green to get me focused on my putting.