Random password: 2swap%thou
10 char (entropy-bits: known=33, unknown= 60- 65): 2swap%thou
15 char (entropy-bits: known=49, unknown= 90- 98): LXsewntrugwoolJ
20 char (entropy-bits: known=66, unknown=120-131): reef7Upartdelisago=2
known = known pattern of x words with x chars
8 char all random (entropy-bits=48): n$THcyLy
32 char all random (entropy-bits=192): #m-2qaAY9sWmftMWRYT@SJke*Rxx5==X

Also see:
GRC for completely random passwords
Lastpass web embedded auto password management
Password wallet multi platform password app for password management
OS X Password managers desktop apps.