First visit the product page of the item that you want to buy for your client
Click on the Arthur extension at the top right of your page
Your extension will automatically open on the Product tab - switch to the Link tab
Click on the Copy Link button
Open a new tab in your browser and paste the link, then hit your return key to launch the page
Anything you buy from this retailer (this product or others) will all be affiliated - meaning you will earn a commission on anything that does not get returned.
Find yourself doing this a lot? Create a lookbook that quickly links to all your favorite retailers.