Catch Theme – How do I make a post and NOT have it appear on the main page?

My main page lists all my recent posts. I like this, though sometimes I make posts that I prefer to just be under a category and not listed on the main page so that it doesn't push my best posts down. Thus far I have done this by manipulating the dates (just making a post and putting a date a few months old). This seems like a crude way to do it and I am wondering if I am missing something obvious. DO I even need dates on these posts? If so, how can I set it up so that not every post I make goes to the main page. Thanks for any help. http://www.todd-william.com/