Amazon's Holiday Shopping Sales have a number of Top Gifts By Price with the discount shown on the product page. Free shipping on $35+ or with Prime. Here are the categories by price: (you can also filter by gift recipient or product category on the left nav)

• Gifts Under $10
• Gifts Under $25
• Gifts Under $50 
• Gifts Under $75
• Gifts Under $100
• Gifts Under $250