Here is hoping that you have a joyous Rosh Hashanah and that 5770 finds you well and prosperous. And here's a ritual from Judaism 101 which may prove rewarding for Jew and Gentile alike:
Another popular practice of the holiday is Tashlikh ("casting off"). We walk to flowing water, such as a creek or river, on the afternoon of the first day and empty our pockets into the river, symbolically casting off our sins. Small pieces of bread are commonly put in the pocket to cast off. This practice is not discussed in the Bible, but is a long-standing custom. Tashlikh is normally observed on the afternoon of the first day, before afternoon services. When the first day occurs on Shabbat, many synagogues observe Tashlikh on Sunday afternoon, to avoid carrying (the bread) on Shabbat.
This is an excellent time to make a clean break with the past. If you've been thinking about giving up an unrewarding habit, why not do it on this holy day?