The daily news updates and special invitations and such a put in a 3 hole folder. Then tag each trip, so I can remember the next time I travel to the area, or on the same ship, I can see who the crew was and what was available. I can't tell you how many times I have reviewed the info. Actually, it looks like a photo album.
As to receipts, I keep them in those document folders each cruise gives you.
Yea, I am a saver.
Lynn