With these tips, in ten minutes last night, I memorized Philippians 1:9-10 (chosen because I had heard it on the radio earlier that day.) "And this is my prayer: that you may grow in knowledge and in depth of insight so that you may be able to discern what is best and may be pure and blameless til the day of Christ." (Holman Standard Version). Now that's no guarantee I'll remember it a week from now though! While researching this article, I found a free tool called Mnemosyne which helps you remember things long-term. (
http://www.mnemosyne-proj.org/) I'm going to try it out over the next week or two and if I like it, I'll add it. :D
I should also do a bit on the different ways of learning -- sounds like your friend is an auditory learner. :) I'll add that suggestion up on the write it down section too.