After several years I am a BIG proponent of writing down the things you want to remember. The craziest things happen in classrooms ... the student quotes ... the things I never thought I would hear myself say ... the sometimes ridiculousness of dealing with teenagers.
There is absolutely no organization to my book, because sometimes I'm in a hurry, and I grab the book, open to the first empty page I encounter and scribble things down before I forget it or get interrupted.
I have cards and notes from students in addition to the silly stories. This book is pure gold. This stuff can't be made up.