Password evolution
1d10t1 ... 1d10t2 ... 1d10t3
OK, so they figured that one out (including hashes)
1idiot ... i2diot .... id3iot
But let's just restate the obvious: get a password manager. I like to add a byte of human entropy by substituting a character or two. Just a bit of paranoia (don't trust that deterministic RNG supplied by NSA and friends).