I can't remember titles either. I have to sing a song through until I find it. I like the ones that give it early -- "The first time ever I saw your face...".
I can never remember songwords I write myself. Probably because I pin them down on paper after exploring many possibilities. I write parodies for the local children as part of musical plays and they're on their own once we go into rehearsal. They are very good at it which is a good thing. One of the youngest children is a very poor reader but is some kind of musical prodigy. He has the songs down after singing them through once.
Last year all of the children sang a three verse-song in Russian after learning it by ear. Some songs are sung in parts and some with solos and dancing.
Joy