Wally in Cincy said:Hey you stole the one I was going to post
Always take the only decent cube of chalk with you when you leave the table, leaving the 3 that are worn down to the nub.
After you chalk for 30 seconds (squeak, squeak, squeak) whack the cue shaft on the rail to dislodge any excess chalk. (Blowing on the tip is an acceptable alternative)
Oh, I've learned this one from watching a guy actually do this;
If all of the balls don't come out after pushing your coins into it, before actually speaking with an attendant first, go to the closest table corner, lift the table about eight to twelve inches, and drop it.