my grandfather has a can of coke at exactly 10 am every single day for the past...as long as I have known him (I'm 30). Sometimes he will pour some in a glass and share with my grandmother, but usually it's all for him.
my dad calls the cashiers at the grocery store by name and talks about them as though they are his good friends (I guess, in some ways, they actually are)
my MIL is always talking about how 'beautiful' all of her nieces, friends' and neighbors' daughters are. It really doesn't matter what they actually look like. Every young woman she knows is "just so beautiful"
my dad always describes lesser known movies as 'small movies' and will always describe those 'small' movies he likes as 'it's a pretty good little movie. small, of course, but pretty good.'
My mom has SO many (like a previous poster wrote) but it's hard for me to really think of them because I am, slowly but surely, adopting many of her little quirks as my own...it's so strange..becoming my mother