TDF is a nonprofit performing arts organization whose primary purposes are to give financial support to theater productions and to make theater tickets more accessible to all. The best way TDF accomplishes part two of its goal is through TKTS. TKTS booths (locations: Times Square's Duffy Square, David Rubenstein Atrium at Lincoln Center) offer tickets to Broadway and Off-Broadway musicals and plays, as well as Lincoln Center performances at the Lincoln Center location, at up to 50% off. Most tickets are to be used the day they are purchased.