I do a slight variation of the "lining up" thing.
If there are multiple disparate objects lying on a table, say, or a desk, and they have straight edges, I line up the edges, either with each other or with the edge of the table.
If some of the objects can't be lined up with anything, I'll adjust them so their edges are perfectly parallel.
And I don't know if this is relevant or not, but while I was only a so-so student in math all through school, I absolutely nailed Geometry. I went from C's and struggling B's in Algebra, to having the highest grade average in my entire Sophomore class in Geometry. Surprised the hell out of everyone, including me ...
[postscript] ... was just remembering the Geometry teacher. She was the cutest little thing, barely five feet tall, with a cute little pixie cut and very nice legs, which she showed off with miniskirts. I had a huge girl crush on her, and of course she liked me cause I was her best student. Lots of other kids didn't like her, probably because she was tough, which I guess they didn't expect from a female math teacher, especially one who was good-looking. But she came down hard on them when they screwed off in class.