Lemon zest in the freezer

Any time I need just the juice of a lemon I peel the zest with a veg peeler and throw the zest in my big lemon zest freezer bag. Easy to grab and chop for a sauce or salad or dip or if I’m out of lemons and need that flavor. I also keep the spent lemon halves in another bag in the freezer to make lemonade with this amazing syrup: https://www.seriouseats.com/fresh-lemon-syrup-recipe