Do your best to not cross paths with spiders.
For example, if you spend time working outside in places where they may live:
Wear long-sleeved shirts, hats and gloves.
Tuck your pants into your socks.
Shake out garden gloves and other clothing before putting them on.
Store gardening clothes in a tightly sealed plastic bag.
Move piles of firewood and stones away from your home, and use caution around them.