I’m a devotee of the Moleskine notebooks. The one I am currently using is the Pocket Memo Lined edition, hard cover. I have a “church purse” where I keep my daily missal, my little notebook, a book I’m reading, a bunch of holy cards, Kleenex, and a [nice pen](“http://www.sharpie.com/enUS/Products/Pages/ProductDetails.aspx?pid=SharpiePenRetractableFinePoint(Sharpie Catalog)”). I write down my intentions for the day for the mass, for the offering, and for my Rosary. My priest says to always have an intention for the main Mass (say, offering the prayers for the Holy Souls in Purgutory), and then also to have specific offerings for the paten and chalice (for example, offering for the conversion of souls). I also dedicate my rosary prayers each day as an offering for an intention.
I also write prayers that I like, or passages from books that I am reading. I’ve written a couple of St. Therese prayers and quotes in there recently, as well as some notes on prayer from a book I am currently reading. Also, once or twice, I’ve been known to take notes during the homilies. Because our parish’s priests give AWESOME homilies.
I also do some personal journaling sometimes, but not too often, unless it relates to insights that I received that day during reading or mass times.
The nice part about the pocket sized notebooks that flip up is that they’re easy to pull out, jot a note, and stick back in the purse in the middle of a prayer, or rosary, or homily. There’s also a pocket in the back where I can keep a few holy cards of my fave prayers that I haven’t quite memorized yet.