Don't get me wrong - I don't love spiders. They give me the creeps. But I don't usually kill them - just sweep them out the door.
If you got'em in your house it's a sign your house is dry and "comfortable". And think of the bugs and other crawlies they eat. I even had a couple in my last house - those big brown house spiders - that became kinda pets. We had an understanding - if they stayed above the picture rails (very high ceilings in the house) I didn't evict them. They were around for ages.
I live in an area infested with red backs, white tails and funnel webs - all dangerous. I reserve the right to kill those ones if they are inside the house. And I unhesitatingly squashed the really big ones we got in the tropics - 7-8" and hairy!! YUK!! (Although apparently not dangerous to humans I just couldn't overcome my creeps for them)
BTW Did you know that the bite of a funnel web spider (sometimes fatal to very young/old humans) has no effect on cats? Different metabolism apparently. I used to panic to see my cats "playing" with them in the Blue Mountains and the vet said not to worry.