I don't know what kind of spider that is living in the garage. I just went out to get a close look and she was gone... probably out hunting. She's always back in the morning.
The scorpions bug me the most (pun intended). When my daughter was at the crawling stage, I watched her crawl right by one as she came down the hall toward me.
We don't have as many now as we did when we first moved here. When we first move in we had 2-4 scorpions per week inside the house during the summer. Now it's more like 1-2 per month. It's a little easier knowing my daughter is old enough to steer clear of them.
I went on the offensive and went after them outside. Sprays don't work against them, but only kill their food - crickets, cockroaches, and spiders. The drill is that you take your black light in one hand and rubber mllet in the other. The scorpions glow bright green under the black light and are very easy to find in the dark. It's rare that I go into the backyard at night without at least one kill. A guy I know built an expensive house on desert preserve land and ended up moving because they had so many scorpions. He said he counted over 50 on his back wall one night!