Many people with cancer like to get mail because it shows that someone is going out of their way to support them. Sending a card does not put the person with cancer under any pressure to respond in person, but gets the simple message of 'Thinking of you' across to them. Keep in mind that you probably don't know the person's exact situation so it might be better to error on the side of neutrality.
Best Answer: According to a scientist at the Forest Reserve District in Illinois, The life span of an average adult housefly is from 20-30 days, and may even survive freezing weather if it stays indoors.
This cycle takes 18 days, approximately three weeks. The housefly live according to the surrounding temperatures. If the climate is very hot, they live up to two weeks only. In winters, when the temperature is very low, these flies live for more than two months. They protect themselves in certain corners of buildings and houses.