You could also encrypt your private key using BIP-38. This will result in an key that is useless for someone that doesn't the password. However, this means that you will have to remember the password forever.
I don't like that option, because I could lost the money forever.
Well then, you could create a 2-of-3 paper wallet and place them in different places so that
1) having just 1 paper wallet is useless so it is safe against thief and burglar breaking into your house
2) you just need 2 paper wallets and no further password to access your bitcoin
It's a better idea.
The paperwallet has the advantage that it can be hidden between the pages of a book, so if you have lots of them, burglars needs to review each book, one by one. And one of the paperwallets could be hidden inside of a pen or the PC speakers.
Of course, you must be careful if you want to sell some books, the pen or the speakers.
