Bear and Cougar Safety: Pacific Northwest
I am planning to go solo car camping (inside of the car) in the Clatsop and Tillamook state forests of Oregon. It's free and it's close to the ocean. In many ways it's a spiritual journey, i.e., I need to get out of the city for awhile or I will go insane, but I definitely want to come back in one piece.
I have read dozens of safety tips, regarding how to NOT attract bears to your campsite (car in my case), and how to remain aware of your surroundings - with respect to cougars. However, much of the information contradicts other advice that is offered. Some say that "bear proof" containers are the only way to go - while others think that the "bag trick" is fine; and some say that even an oil leak on my car is an open invitation to a bear.
Can I hang my food, garbage, toothpaste, or petroleum products from a tree - and feel free to fall asleep in my car without fear of becoming lunch in the middle of the night?
With Respect to bears and your car
Bears have very good eyesight. Never leave anything in your car that looks like it could contain food. So remove all trash bags, coolers, from the car. They can also smell -- and one of their favorite triggers is sun screen. Remove everything from your car that has any kind of scent.
If approached by a bear or a cougar -- always stand as tall as you can -- if either kind of animal is feeling aggressive they will assess how big a threat you represent -- You want to be the biggest animal out there. And like Tim mentioned, slowly back away. Get out of the sight of the animal by moving at right angles away from them.
In the west, cougars are becoming a bit of a threat, so make sure you stop in and speak with rangers if you're going to be hiking/camping in an area. There more of an issue in Southern California than in the area you're heading.
Mark