Many, many yrs ago i always squashed spiders even the big Huntsmen, unfortunately they'd leave a big mess.
Then i realized that life matters to all creatures and i should try at least, to catch and release any that come inside. So since then i get a large tupperware container and a sheet of paper, get on a chair,[coz they usually end up on the ceiling] and then quickly trap the spiders in the container.
Getting that close-up to a Huntsmen is a bit scary for me[coz i'm a girl!] but i always feel good once they're back outside.
The only animals i kill are cockroaches, flies and mozzie. Hypocritical? Yes. But i do the best i can and those 3 are difficult to feel sorry for i'm afraid.