I suggested it in another thread, but I think it warrants its own topic.
A serious problem with the bitcoin system is a wallet.dat can be stolen and emptied by a third party.
To solve this problem, a good practice is to create a second wallet, encrypt it with truecrypt and keep it offline. You can unload there your everyday wallet when it becomes too fat.
I suggest calling such a file
bitsafe.dat, since it mirrors the real life use of these objects.
It would be nice if the Bitcoin client supported that functionality, ie
- The ability to create a bitsafe
- The ability to load such a safe from a reomte drive.