Mystery Gift Bot - Don't think about what to buy, let it be a mystery
GiftBuster - Wish list registry & shopping list app
Giftwhale - Giftwhale allows you to create personalised wish lists online.
GiftHub - Headache-free gift-picking, powered by AI
Honey - Honey is a browser extension that automatically finds and applies coupon codes at checkout with a single click.
Wish Whale - Simple slick and flexible online wish lists