When you are at the library.
My favorite question - "how many books can I take out?"  and the answer here is: "As many as you want."
And the eyes light up.  The eyes of a true reader discovering treasure, unbounded, bountiful.  
It isn't good to be greedy, yes, but that rule goes out the window at the library.  Here greed is good.  I want you to carry out a stack of books, surround yourself with them, and read to your heart's content.
One of my favorite patrons is a mother who brings a rolling suitcase with her, empties out her returns, and sends her children to gather up new treasures to bring home.  
And while you're at it - take all my display books because I put them up there for you to be tempted by new offerings and old favorites.  Read!   (Hmmm...rhymes with greed, just sayin').