Filter by price and Bulk Edit is a easiest way to filter by price and update your Shopify product catalog. This app implements filter by price to search products which is missing in the default product listing page in Shopify dashboard. The app is fast and Ajax driven. It has nothing extra, just what you need to filter products by price. Also the app uses the default to Shopify bulk edit for editing products which is more reliable when it comes to bulk editing products data.
When your customer wish lists something send them mail, push notification or just reward them for this achievement & many more such possibilities.