Grandpappy the Pirate/Cephalopod Lodge - S6-E15
Corrected entry: Spongebob says "I'll get you back in that club, and I know just how to do it". He begins walking toward Squidward's dresser and says,"Everything we need is in this drawer". Spongebob retrieves a sock from Squidward's dresser, although he should not have known that Squidward kept his socks in that specific drawer anyway.
Correction: You have to understand, SpongeBob basically stalks squidward. Sponge Bob can get in and out of his house plus he has been there many times and he has also been in his dresser before.