Guys ('n' gals), don't forget to add a passphrase ("25th word"), in addition to your seed. Doing so, will protect you from someone finding the seed. Even a relatively weak passphrase will give you enough time to move your coins to another wallet when you discover that the seed has been found (and while the thief is brute-forcing the passphrase). A strong passphrase will make it virtually impossible for a thief to have access to your coins.

A passphrase (more than one, to be precise) will also add plausible deniability of ownership of your coins, should you ever be required (or be forced) to reveal your stash, as I've explained in this post.