It appears xkcd is not offering any notable promo codes, sales, or other offers at this time. Look for deals from stores similar to xkcd below, or find offers that xkcd is currently promoting at store.xkcd.com. If any new offers become available, we'll verify that they're valid and post them here.
Showtime Networks has a discount code for Save Up to 30% Off Store-Wide at Showtime Networks – Expires Soon running on store.sho.com. Click the blue button to open and view this promo code, the code will be automatically copied to your clipboard. Remember to enter this code when you're checking out at store.sho.com.
BBC Shop has a discount code for 10% Off Your Shopping Cart with Code at BBC Shop (Site-Wide) running on shop.bbc.com. Click the blue button to open and view this promo code, the code will be automatically copied to your clipboard. Remember to enter this code when you're checking out at shop.bbc.com.
Shop Disney has an offer code available for Free Shipping on Orders of $75+ at Shop Disney (Site-Wide). Click the blue button to copy this promo code to your clipboard. Then, place your items in your shopping cart at shopdisney.com. Finally, enter the code in the coupon code box during the checkout process, and your savings will be applied.
Click to save at Firebox. This store is offering 10% Off w/ Promo Code on Your Next Purchase at Firebox, redeemable at firebox.com. Open the promo code by clicking the blue button. The code will be copied to your clipboard so you can use it during checkout at firebox.com.