This question has been asked on superuser.com, with many answers and associated discussion: http://superuser.com/questions/255/how-do-you-keep-track-of-all-your-passwords

The thing that annoyed me the most about Jar-Jar was his cowardice. C3P0 and R2D2 display many brave acts of heroism throughout the series (despite the complaints from C3P0), but Jar-Jar's "triumph" is the result of his clumsiness while he was running away from battle. For which he subsequently receives a medal! It's hard to have much admiration for him.