Buy two SD cards, one red and one blue.
rar a -m5 -v10k -R wallet /home/user/.bitcoin/wallet.dat
Then you get over 10 wallet.part01.rar file. Alternate the files so that the even numbered archives go on the red SD card and the odd numbered files go on the blue SD card.
Then when you want to open your secret-wallet it looks really cool because it's like a lock that requires two different keys from two people to open.