言わ猿

They make the zaru into the kanji for monkey for that proverb with the wise monkeys.

for the normal verb conjugation stuff like sezaru wo enai... zaru is left in hiragana. there's no kanji for it.

I thought it was cute

Thanks for the link Josh. I should probably avoid using マクる if it's pretty much just used by high school students, but to hell with it.

Today I was reading the newspaper and saw the word for rounding fractions--四捨五入. 

GREAT kanji.

normal word I was still glad to find:　諺
While looking for something like 「口は災いの元」
Very effective in searches too!
直ちに実行される

Everyone who has lived in Japan for any length of time knows that certain things or images are closely associated with a season, and vice-versa.  This goes well beyond what I was used to in America, where seasonal associations don't go very far beyond snow=winter.

Anyway,  I was reading the Japanese Wikipedia article for 桜, and came across this word:
風物詩 (ふうぶつし）

Things which remind someone of a particular season.  A big thing in Japanese culture, but I had never heard the word until now.