If you are aware that a legislator has been supportive in the past, let them know that you appreciate their efforts. Use standard forms of address. Write in your own words. Time your letters to reach the legislature just before decisions are being made. For the 2000 legislative session, letters can be sent to legislators' homes during December or, beginning January 3, to the Statehouse in Boise.
Letters are still the most effective method for communicating with legislators.