Spend Based: Spend $100, get 10% off Collection Y and a Free gift 
Quantity Based: Buy 2 from Collection X, get a Free gift and free shipping
Collection & Order Based: Spend $1000, get a 50% off collection, free shipping, andan additional 10% off the entire order
How to Promote Your Offer
Progress Bar: Use a progress bar that clearly lists the different rewards at each tier. As the customer adds items, the bar should fill up, showing them what they've earned and what's next. For example, the bar might show that at $100, they get a free gift, and at $150, they also get free shipping.
Homepage Banners: A simple, eye-catching banner can announce the offer. Use a headline like, "Build Your Bundle! Mix & Match to Get a Free Gift and Free Shipping."
Progress Bar: Use a progress bar that clearly lists the different rewards at each tier. As the customer adds items, the bar should fill up, showing them what they've earned and what's next. For example, the bar might show that at $100, they get a free gift, and at $150, they also get free shipping.
Homepage Banners: A simple, eye-catching banner can announce the offer. Use a headline like, "Build Your Bundle! Mix & Match to Get a Free Gift and Free Shipping."