Why, oh why, do people think any unfamiliar spider must be "new to the area" and presumed dangerous?
The spider you're trying to identify does not have to be one of the few species you've already heard of!
Spiders sent for ID in an envelope (even if padded) are likely to arrive powdered! Send it in a rigid container, preferably in alcohol.
Don't trust physicians and pest control operators to correctly identify a spider; only an arachnologist has the required training and skill.
A picture that "looks just like" your spider does not identify it!
Please use inches or centimeters, not "silver dollars" or other coins, to describe the size of spiders!
Pacific Tree Frogs usually live on the ground (despite their name) and hide in underground burrows.
Woodhouse's Toads can be found in river valleys, meadows, grasslands, and marshes in southwestern region in Washington state.
To identify spiders, you can't just look at 10-12 pictures! There are 50,000 species to choose from, separated by picky microscopic details.
Western Toads dig shallow burrows in loose ground or shelter under rocks or logs.
The oft-repeated "spiders don't stick to their own webs thanks to oil on the feet" is wrong — the story is much more complicated.