I don't drive any more or have regular transportation, so a lot of what I want is ordered online. Bought some of Holly's recommended Permatex Clear RTV Silicone Adhesive and I gotta give a plug for this vendor:
www.zoro.com
I ordered two 3-ounce tubes at $3.27 each, with $5.00 shipping, plus tax. Total was less than $13. The recommendation comes because, not only did they have good prices and a great ship cost, I placed the order yesterday and it was delivered today. Box had a Return Form, too, in case it was needed.