The repairman asked her for her password so he could get into her computer.  She said:
"MickeyMinniePlutoHueyDeweyLouieDonaldGoofySacramento."

 
When he asked why she had such a long password, she rolled her eyes and said:
"Hello!  It has to be at least 8 characters and include at least one capital."

One of the best blonde jokes I've heard