[SSJup81]

That's how I remember "ame". I just think of it as a window with raindrops. Too bad I can't think of any other Kanji I know by remembering something. Some I just know them when I see them.

I just thought of a couple.

川 (かわ): River. I remember this one because it looks like a flowing stream.
山 (やま): Mountain. It reminds me of a mountain.
中 (なか): Inside. I just think of it as the line being drawn inside the rectangle. Lame, but that's how I remember it and know it when I see it.