Currently the site I'm working on uses shipping-calculator.liquid to calculate shipping rates. The user selects from a long drop down list of postcodes and then selects date and finally pushes the 'add to total' button. Does anybody know of a way to simplify this process, perhaps by replacing the drop down select field with an input field where the user can type their postcode and the rate is automaticallly updated in the order summary? The site is https://pulbrookandgould.co.uk and if you go through the first part of the checkout process you'll see what I refer to. Any help or advice appreciated.
I've moved your post to our Design board so you can receive a better response as this requires coding knowledge!
If you're interested, there are some shipping calculator apps you can check out here.
Hope this helps!