Nell writes:
Someone suggested that thriving orchids produce honeydew. Could this be
what it is? If so, do I need to do anything?

Yes, they do, and it is perfectly normal. My epidendrum (flowering for
the second time this year, whee!) puts out vast amounts of sticky goo
around flowering time. I tend to get aphid problems because of the
goo, but a small amount of soapy water usually remedies that problem.

Geir