List of Features:

1 Show the hidden flashcards in Quizlet without logging in.
2 Remove the login box on the bottom of the FlashCards page.

List of OPTIONAL Features:

1 Disable the Reading function on flashcards.
2 Remove the :
Big Flashcards in the top.
User name that created the quiz.
Tags related to the quiz set.
Top blue navigation menu.
"Sign up and see the remaining cards. It’s free!" box.
Top menu that appears when the page is scrolled down.
"THIS SET IS OFTEN IN FOLDERS WITH..." box.
"Save time with an expert" message.
Needlessly big footer.
Stick footer banner.

*On the beginning of the script codes you will see this

var DisableReading = true; //If true the Reading function will be disabled
var RemoveNeedlessThings = true; //If true the Needless Things will be removed

By default all optional features are enabled, to disable them just replace true with false on DisableReading and/or on RemoveNeedlessThings.
Example: (if you want to disable all OPTIONAL features.)

var DisableReading = false; //If true the Reading function will be disabled
var RemoveNeedlessThings = false; //If true the Needless Things will be removed