Do not use postcards. Keep your letters to one issue, short and to the point. Refer to the issue specifically or by bill number, if possible. Clearly state what it is you want them to do. Offer specific information on why it is important.
Timing is critical.
If the letter arrives too early, it may be forgotten before the vote. One or two days before the vote is taken is generally the best. Ask that the legislator state his or her position in the reply. Legislators appreciate thank you notes, as they often use them for materials for newsletters or other materials being mailed to constituents. By Personal Visit Visits are important on key issues when your legislators' votes really count.