I use and highly recommend:<p><a href="http://hnnotify.com/" rel="nofollow">http://hnnotify.com/</a><p>HNNotify emails you when someone responds to one of your posts. It cuts down on the distractions that come along with constantly hitting refresh on the threads link.
<a href="http://news.ycombinator.com/threads?id=yourUserName" rel="nofollow">http://news.ycombinator.com/threads?id=yourUserName</a><p>Assuming you mean without having to watch the individual thread. Shows the comments you've made, and replies.