Target discounts select Purina Tidy Cats Clumping Cat Litter 35-lb. boxes when you check the "subscribe for 20%" option when you check out. Even better, add two boxes to your cart to bag a $5 Target Gift Card for free. Plus, all orders qualify for free shipping. Deal ends May 7. The items, with comparisons assuming you'll use the gift card:

• 2 Purina Tidy Cats Glade Litter for Multiple Cats 35-lb. Boxes for $19.18 (pictured, low by $13)
• 2 Purina Tidy Cats 24/7 Performance Litter for Multiple Cats 35-lb. Boxes for $19.18 (low by $12)
• 2 Purina Tidy Cats Instant Action Litter for Multiple Cats 35-lb. Boxes for $19.18 (low by $10)