I just finished my first 5-Year Journal from Levenger and I can't recommend it enough.
The idea is to write a short sentence or two each day. The journal is laid out so that each page contains five entries, one per day for each of the five years. It's great seeing what I wrote on any given day in prior years. It's easy to spot things that have changed over time. Better yet, it's easy to spot the things that haven't.
I bought four of them and now have three left. That's 15 more years of small daily records. Priceless.