Use the following form to create a bookmarklet that you can click on while browsing Amazon to quickly set up a price alert for an item. (Javascript must be enabled in order to generate the bookmarklet.)
The default email address to use for your bookmarklet, so you don’t have to enter your email address every time. You’ll have an option to use a different address if you change your mind for a particular item. (Including your email address here just puts it into the bookmarklet that you generate here and save to your browser. The address is NOT submitted until you actually use the bookmarklet to create an alert.)
Optional: if you want to default to a price alert that’s 90% of the current price, enter 90 here. Valid values are 1-99. You can always override the default while creating your alert on a case-by-case basis. Using a default saves you from needing to fill in a price when the default is appropriate.
Drag the “Price Alert” button to the bookmarks or favorites area of your browser’s toolbar, or right-click and save it as a favorite. (Internet Explorer may display a security alert, because the bookmarklet includes Javascript, and you must click ‘Yes’ to save the bookmarklet. It is safe.) You should get a new bookmark named “Price Alert”. Using that bookmark, you can easily add a new alert while browsing Amazon by clicking on the bookmark while looking at the page of the item you’d like to create a price alert for.