Don't worry. Most of my "paper" wallets are encrypted silicon, duplicated and off-site.
Those that are actually paper (travel, current transactions, etc.) I keep in money-sized ziplock baggies along with pertinent transaction details like dates, amounts, sources etc.
I think laser printed paper wallets are better than inkjet printed, as the toner lasts longer and more resistant to moisture. I can't tell from the picture as there are color laser printers but they tend to be more expensive (and the toner as well.)
Mine are in those plastic folder binder thingies with sheet protectors.