I've found a plain (hardback, moleskine-like) notebook with no preprinted page numbers / dates works for me. Dates are filled in when entries are made.
It avoids situations where there's a feeling of wastage when a page isn't fully filled, or cramped writing when there's more than a page worth of information to write down.
It avoids situations where there's a feeling of wastage when a page isn't fully filled, or cramped writing when there's more than a page worth of information to write down.