Inside the seam of a car s visor after you cut open the seam, remove some padding and insert cash. Under the flagstones of your walkway. In a pouch around your neck or a leg wallet or money belt. Inside shoulder pads. Inside the hollow rod that holds the shower curtain up.
Some people convert their cash into airline tickets, especially when they go out of the country.
One fellow reports that customs people never say anything when they see a briefcase full of such tickets. He buys thousands of dollars worth of first-class flights, trying for longer trips, which are more expensive. Nobody else can use them but me, and I can cash them in anywhere in the world. Burglars look there.