1. I use a mnemonic word AROWILL to remember the documents that I am required to have on board.
2.  
3. Airworthiness Certificate (CARs 605.03)
4. Registration Certificate (CARs 202.26)
5. Owner's Manual (CARs 605.04)
6. Weight & Balance
7. Insurance (CARs 606.02)
8. Licenses (pilot's licence, medical, and radio licence - CARs 401.03)
9. Logbook (the aircraft journey logbook, not your personal logbook)
10.  
11. There used to be two Rs and two Is in the mnemonic, but the aircraft radio station licence and the interception signals are no longer required to be carried on board. The journey log may be left at home if you will not be shutting down at another airport (CARs 605.95).