I went to Office Depot or a similar store and got a little black book, made to hold business cards (3 per page, in little vynal pockets), I fill it up with frequest flyer cards, hotel cards, casino frequest player cards and a couple grocery store cards (like the Kroger discount card ... there are no Krogers in FL, but when I travel I use it alot to save on beer and soda) .....

Then I keep it in my caryon when I travel. Great system. Keeps me organized. Then I will put things like bump vouchers or boarding passes loose in the book, so I know to reach for it whenever I need anything travel.