Some people like to support independent artists. Some people like deals.
If you're interesting in supporting my artwork and want a discount on my printed T-shirts, there's a monthly membership available on my Ko-fi page. For $5.00 (USD) a month, you get my heartfelt thanks as well as a member-only code for 10% off every month for use on my store.
The graphic tee designs in the store are rotated in and out on a regular basis here, so this is your chance to save on the shirts you like.
Your support helps me in a very fundamental way. It lets me work on the art I want to create, including protest art and comics.