Money, highest dollar value bill on top facing up, the rest follow suit in decreasing value

Pairs, sets must match. No mis-matching
- e.g. organizing cans, bottles by brand.
- colors

There are two sizes of spoons/forks in a silverware set. I always use the smaller size

Shapes/objects need to be parallel or in a geometric configuration that is at least semi-symmetrical

If I'm looking at the ground while walking, I can't step on a crack/gap where two concrete slabs conjoin. It has nothing to do with the nursery rhyme. I plan my steps so that my feet land in between

Fridge must be organized in the most volume consuming manner

Cannot mix sweet things with salty things for breakfast
-e.g. waffles and bacon does not work.

Shirts organized in closet by color


The list goes on........ I have many very minuscule OCD tendencies
Are they anything more than just habits though?