You have to sign up for an account before you enter the Secret Sales website. Go to SecretSales.com and fill in the information on the front page to create an account. It's free.
Browse the site for home wear, clothing for men and women, cosmetics and more. Select the items you'd like to purchase and add them to your shopping bag. When you find an item you want to purchase, click "Quick Buy" next to it. Fill in the Size and Quantity options in the window that pops up, and click "Add to Bag."
Visit the Secret Sales merchant page at Promotionalcodes.org.uk. Find the discount that you want to apply to your order, and click on the button that says "View Code & Open Site." Copy the code that appears.
Once you've selected everything you want to order from Secret Sales, hover your mouse cursor over "My Bag" on the top menu bar. Select "Checkout" on the drop-down menu that appears.
On the first Checkout page, you'll be able to review your purchases. Near the bottom of the page, you'll see a section labeled "E-vouchers and promotions." Enter the promo code you received from Promotionalcodes.org.uk in the box provided, and click the "Validate" button. Select "Checkout now" once you've validated your promo code.
You'll now be able to enter in your delivery address, billing address and preferred payment method. Once your payment details have been entered, your order will be processed and shipped to you from Secret Sales.