Oh, Catalina Alisa Marks is right: although I would say its duct
  tape and TOOTHPICKS and wood glue. Toothpicks and woodglue is
  even handier - as a HOLE FILLER or tightening loose windows or
  loose door hinges or whatever. You can use thm as is (shove in,
  break off the end that sticks out) - or coat them with wood glue
  and shove them in 'til the hole is completely filled tight with
  toothpicks. "