People buy these various wishes for good luck, and stick them up in the appropriate places.
For example, "always full" goes on the rice container; "cheut yahp pihng ngon" (= "peace, going in and out") goes on a door.

20070211 029.jpg [Posted 2007.02.15 to the Image by chance gallery.]

Other recent uploads to the same gallery:
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And here's Lilac, working up some luck in a previous year: