God told Joshua not to let the Book of the Law be out of his mouth, that he should meditate on it day and night. Psalm 119:11 says, "I have hidden Your word in my heart that I might not sin against You." A great way to do that is by memorizing scripture. Memorizing can be hard. Not everybody can do it word for word just by reading it over and over to yourself (though that's a great way to go if you can). Often you can remember better if you learn it as a song. Here's a site with some good memory songs. However you memorize, remember that if you don't seek to do what the word says then memorization won't be anymore beneficial than memorizing all the songs of your favorite band or a bunch of baseball stats. (Trust me, I know just how worthless both of those things have proved in my own life.) I know how hard it is to memorize even when doing it is easy. Here's my pledge to you. I will memorize a new passage of scripture each week. Put me to the test on Wednesday nights.
Here's my challenge to you. If anybody memorizes Deuteronomy 30:11-20 or Joshua 1:1-9 and recites it to me on Wednesday night (May 26 or June 2) I will buy them $1 worth of stuff from the Underground Cafe. If nine verses is too much then memorize one or two verses from anywhere else in scripture and I'll at least give you an airhead. The only catch is that they've got to be new ones. No airheads for something you already know.
Eat the word. It's good. (Psalm 19:10)