Mr. Krabs: What's the most important rule here?
Spongebob: No free napkins?
Mr. Krabs: No, the other most important rule!
Spongebob: Only discuss the secret formula with Mr Krabs.
Mr. Krabs: As long as you do that, the formula is safe.
Squidward: I thought the most important rule was why do today what you can put off for tomorrow?
Mr. Krabs: But what's today, but yesterday's tomorrow?
In "I Heart Dancing", the lady at the Krusty Krab tells Spongebob the dancing audition is the next day. Later, Spongebob is practicing at Squidward's house for a whole night, and the next morning Squidward says they have one more day to practice, even though the audition should have been that day.