I would write them out every two days (name, structure, one letter) within the time it took to listen to Justin Timberlake's 'What Goes Around Comes Around'. First few times looking at the slides, then abandoning the slides and just checking over my work and correcting the mistakes, then it was second nature. And, in the exam, I would just be like 'hey guuuurl, is he everything u wanted in a mannnnn' and it all poured onto the page.
Seriously though, I typically practice rote learning things (this, metabolism) with a song of a suitable length because it pushes you to recall things as quickly and efficiently as possible. I guess timing yourself to do it within x minutes would be helpful too but less fun.