When the Evil Chameleon (in the guise of Janice Robinson) gets the package from the delivery man, there is no name on it.
The credits as shown at the end of the show are actually partially wrong. Tamera plays both roles by switching from one character to the other while Tia only played the Chameleon (and not Janice as credited) during the shared scenes.
When the girls hold the chameleon at the pet shop, its lack of motion reveals it to be fake.
Mrs. Robinson's car has a Connecticut license plate, and yet her groceries have Canadian packaging. The generic box of crackers alone has "craquelins" (the French word for "crackers") on it.