Amazon with Houseware Central has the BLACK+DECKER Indoor Fly Trap for Windows (16 Clear Strips) for $9.99 - 50% off coupon (click checkbox) = $4.99 with free shipping on $25+ or with Prime. Other BLACK+DECKER options after 50% coupon:
- 20-Pack Double-sided Fruit Fly Traps for $7.49
- 30-Feet Hanging Fly Trap Paper Roll for $6.50
- 40-Pack Sticky Fly Paper Ribbon Gnat Catcher for $13 (no coupon)