Mnemonic for the tones of 梳 and 漱

I have long known that, excluding the tones, shu is the Pinyin spelling for the verbs for both comb (梳) and rinse one's mouth (漱). However, I have always found it difficult to remember which one is first tone and which one is fourth tone. Until now, that is, having finally associated the hair on one's head with being higher than one's mouth, "like" the respective tones of 梳 (shū) and 漱 (shù) -- first tone is typically defined as high, and fourth tone as falling.

And with this blog entry, I've also finally learned how to write those characters, too!