Lately, I've taken to saying the full Rosary every day. I shoot for doing the Joyful, Sorrowful, and Glorious Mysteries every day - on Thursdays, or if I know I'll be able to set aside time, I add the Luminous Mysteries in as well. But one trouble I've always had with the Rosary was keeping focused - my mind tends to wander, and I wasn't mediating on these events in the life of Christ.
I found a really nice pocket Scriptural Rosary book, and that's done wonders. The selection of verses from scripture really help me stay on task, and some have been very moving. It only cost about $5 - if you have issues with your mind drifting, I highly recommend getting a similar book and keeping it with your Rosary!