How do you change/reset your personal shop password?
Converse with fellow players
Send a support ticket via the Support menu at the top of the website using "Contact Us." Once you login into support, click the "Submit a request" link at the top.
Did you know you don't need to use the virtual keyboard to enter your password? Also, "the kinda thing an idiot would have on his luggage" is more than an acceptable password. The only reason that the personal shop password exists is to add extra security for people that play in internet cafes, so you shouldn't worry about it being secure.