Mention the fact that you're a senior when you first make your travel reservations -- although most of the major U.S. airlines have canceled their senior discount and coupon book programs, many hotels still offer discounts for seniors. In most cities, people over the age of 60 qualify for reduced admission to theaters, museums, and other attractions.
Seniors, known throughout Ireland as OAPs (old-age pensioners), enjoy a variety of discounts and privileges. Native OAPs ride the public transport system free of charge, but the privilege does not extend to tourists. Visiting seniors can avail themselves of other discounts, though, particularly on admission to attractions and theaters. Always ask about an OAP discount if special rates are not posted.
Tourism Ireland is helpful, and can offer advice on how to find the best accommodations, travel, and so forth. It publishes lists of reduced-rate hotel packages for seniors; contact it for details.
Members of AARP (formerly known as the American Association of Retired Persons), 601 E St. NW, Washington, DC 20049 (tel. 888/687-2277; www.aarp.org), get discounts on hotels, airfares, and car rentals. AARP offers members a wide range of benefits, including AARP The Magazine and a monthly newsletter. Anyone 50 and over can join. Similarly, SAGA Tours (tel. 800/343-0273 or 617/262-2262) operates tours to Ireland specifically geared to seniors or anyone 50 and over.