What are your cigar habits?

I've been reading Love In the Time of Cholera and there was a passage:

She would open the door as her mother had raised her until she was seven years old: stark naked, with an organdy ribbon in her hair. She would not let him take another step until she had undressed him, because she thought it was bad luck to have a clothed man in the house. This was cause of constant discord with Capitan Rosendo de la Rosa, because he had the superstitious belief that smoking naked brought bad luck. and at times he preferred to put off love rather than put out his inevitable Cuban cigar.

Got me thinking, I'm not a very superstitious person, but I'm curious now; what other superstitions and traditions do we you guys follow?