Mariana,

Casper the Friendly Ghost decided to begin a scratch regimen that included
several upholstered chairs. Also, since he believes he is a dog, he likes
to scratch the door frame to let us know he wants to go out on the patio -
at 5AM. If we're around, a simple NO, or, as Rob suggested, a loud clap and
a point will do it. But, we're not always around.

We found a product called "No-Scratch! for Cats" at one of those Pet
supermarkets. (Gee, the marketing people at that company are ingenious,
aren't they? G) Casper shrinks from anything that has been sprayed with
it, but it has no odor that *we* can discern, unlike some of the Hartz
products that will drive a human being from the premises along with the cat.
It doesn't stain anything and isn't oily. The effect lasts about a week,
but I must say that after a couple of applications Casper was largely
trained not to do that anymore. (Unlike you, I love the little devils, and
this rescued cat is the funniest, most loving guy you could ask for, so we
were anxious to keep it that way!)

Here's the ingredient breakdown for a 16 ounce spray bottle:

Active: Garlic, 7 grams-2%; clove, 7 grams-2%; sodium lauryl sulfate, 10
grams-3%; mint, 7 grams-2%.
Inert: Predictably, Water, 91%.

I don't think there's anything there that could harm an orchid, but someone
may correct me. At the very least, spraying this stuff on the pots ought to
do the trick.

HTH

Diana