A lot of you porbably already know this but you can visit certain characters in VMK once a day to earn 20 credits per character.
Esmerelda- The Emporium
Pirate- Pirate's Treehouse
I think that's it
If it is your first time visiting the character you will receive 40 credits per character and a pin.
Do this everday and you will earn 80 credits a day