Removes all Amazon saved for later items on the cart page. It will only remove visible items. You might want to scroll first to make more items visible. To use paste code in developer console (Ctrl+Shift+J or Cmd+Opt+J in Chrome) then press enter.

deleteAmazonSavedItems.js

function deleteSavedItems() {
	var query = document.querySelectorAll("#sc-saved-cart input[value=Delete]")
	if (query.length) {
		query[0].click();
	}
	if (query.length > 1) {
		setTimeout(deleteSavedItems,100);
	}
	else {
		console.log('Finished');
	}
}
deleteSavedItems();

I've modified this to work in 2024:

function deleteSavedItems() {
    var elements = document.querySelectorAll("input[name^='submit.delete.']");

    if (elements.length > 0) {
        elements.forEach(function(element) {
            element.click();
        });
        setTimeout(deleteSavedItems, 100);
    } else {
        console.log('Finished');
    }
}

deleteSavedItems();

Should you desire to move your items to a Wish List instead of deleting them for good, you can do so with a slight extension to the great script already provided by @MichaelLawton. You'll need to view the source of your Shopping Cart page to get the list/registry ID of your specific list to save them to (should look something like "#registry-XXXXXXXXXXXXX").

function moveToWishList() {
	var query = document.querySelectorAll("#sc-saved-cart input[value='Move to Wish List']")
	if (query.length) {
		query[0].click();
	}
	var query2 = document.querySelectorAll("#registry-XXXXXXXXXXXXX a")
	if (query2.length) {
		query2[0].click();
	}
	if (query.length > 1) {
		setTimeout(moveToWishList,5000);
	}
	else {
		console.log('Finished');
	}
}
moveToWishList();

THANK YOU!! @PeterSchuebel , @MichaelLawton and @kyletmiller

Can we do/ add a similar script (direct or via Grease Monkey etc) or via an Extension to do this WishList action(s)?

https://webapps.stackexchange.com/questions/118938/amazon-wishlists-select-and-move-multiple-items-at-same-time-from-one-default

Amazon Wishlists: Select and Move multiple items at same time from One/ Default Wishlist to others?

Have collected a lot of items on Default Wishlist and would like to MOVE and organize them.

As shown below, one has to select each item one at time from a Default Wishlist to MOVE it to other ones to Organize them.

I was hoping there was some way to select multiple and have them MOVE together to another list - many at one go; I am guessing some kind "multi select" using Checkmarks or something else.

Thoughts & ideas welcome.

https://i.stack.imgur.com/JSJVt.png

Addition to above solution

Working Chrome 08-2024

Just zoom out Chrome window to 25% (or minimum)

Paste this in the dev console

function deleteSavedItems() {
    var elements = document.querySelectorAll("input[name^='submit.delete.']");

    if (elements.length > 0) {
        elements.forEach(function(element) {
            element.click();
        });
        setTimeout(deleteSavedItems, 100);
    } else {
        console.log('Finished');
    }
}

var intervalId = window.setInterval(function(){
  deleteSavedItems();
}, 5000);

Later you can close the tab or you can paste the following code to stop the loop

clearInterval(intervalId)

I got a little frustrated last night with some of the query limit errors and having to restart the script (my soon to be ex-wife had over 750 items saved), so I rewrote the script, though I think the setInterval in the above script would have handled it just fine.

https://github.com/mittingphx/WebsiteAutomation

Looks like others also added similar checks to restart the script automatically when you get the quota limit errors. Here's a link to the version that I wrote last night which worked well the first time without any further intervention (super fun to watch the count go down in real time). Fingers cross it continues to work, works great in Oct 2024. https://github.com/mittingphx/WebsiteAutomation