And oh, make sure you have indoor plumbing too:
Thanks to antivenin and good medical care, deaths from spider bites have steeply declined since the 1950s, according to records kept by national poison control centers. Changes in how people live have helped, too. For example, in the United States, the switch to indoor plumbing sharply cut black widow bites. That's because men using outhouses were often bitten on the penis or scrotum, where the thin skin and abundant blood vessels meant venom quickly entered the body, a doctor reported in 1942 in the Annals of Surgery.