5 The LORD watches over you - the LORD is your shade at your right hand;
Begin the day by reviewing the first four verses of this psalm. Then add on today's verse - isn't it a marvelous word picture? If it wasn't for shade we could literally die in the desert. This verse doesn't promise us a desert-free life, but it promises us that God will be our shade. Meditate on the meaning of this verse as you memorize it.
Recite and review throughout idle moment in your day. Laundry day? Perfect opportunity! Combing your kids hair? Recite it to them!
In fact, I'm reciting these verses aloud with my kids as I make their school lunches in the mornings, so they're learning it with me! (Course, today's Good Friday, but I can still squeeze it in at some point today) They memorize so quickly, they can easily memorize during that one short stretch. We review again after school or at bedtime. Even if you don't "make" them memorize, it's good for them to hear you reciting scripture, both to see it's importance to you, and to benefit from simply hearing the Word of God spoken.
LeRoy Eims on the importance of Scripture memory: "I think two of the master strokes of the devil have been to convince people he doesn't exist, and that Scripture memory is only for children. He remembers the humility of defeat when Jesus Christ, who was tempted in all points like as we are, met him with the Word of God." (What Every Christian Should Know About Growing; p. 26-27)