Spiders busier than bees?

Busy as a bee sounds and looks like a good example of hard working as does the beaver example. You may not see spiders working but the results of their labor makes itself well known when the dust settles on it.
Spiders seem to like my car. At least one appeared to be exploring the open passenger window yesterday. When I sought to brush it outside it disappeared into the slot where the window rolls down. I saw it again later and it deftly receded into the slot. I had vacuumed the car interior several days before so the previous webs had been disturbed. That obviously did not deter Ms Spider. She simply moved her territory up front.
Two thousand and five is not the first year I've had evidence of spiders in my car. My grandchildren laughed at the webs they saw in the back windows five years ago. I rarely see the critters and expected that they froze out when winter came. But they do not freeze out in my back yard so why would they freeze out in my car? They are busy little beavers or bees - actually spiders.
And I live with them - sort of.
Naomi Sherer