This is making me wonder if I'm being rather naive...I use Firefox, and have it set to delete all cookies and clear the cache every time I log off. Highly secure passwords are remembered for me, so logging in is not much of an issue. Also set to "Do Not Track", which I realize is pretty ineffectual, but every little bit helps. If this is effective, it might be a reasonable, and free, solution for original poster. If I'm deluding myself here, I hope someone will tell me so!