"1-2-3-4-5? That's the kind of combination an idiot would put on his luggage!"

One of my favorite scenes from the movie Spaceballs is when President Skroob and Lord Dark Helmet are discussing the combination to the air vault surrounding Planet Druidia. What? You haven't seen it?
Ok better stop what you're doing and watch the trailer at least.
As the Lord Helmet realizes what the combination is he exclaims, "1-2-3-4-5? That's the kind of combination an idiot would put on his luggage!"
"Remind me to change the combination on my luggage," said President Skroob.
Either way I digress.
But The Modern Life is Rubbish weblog lists the 10 most common passwords in the UK - a list that should serve as a good reminder of passwords you want to avoid.
The general ideas behind these passwords are pretty universal. Of the top 10 passowrds, 3 of the are numerical/ordered keyboard inputs ('123', '123456', and 'qwerty'); 4 are popular names (first names or popular sports teams); and 2 are sort of password jokes/gimmes ('letmein' and 'password').
Thanks to Lifehacker for the tip.