Earlier we need to have Photoshop or other designer software to create designs for our T-shirts. Now there are online shirt design maker which could create the design for you. Also you could directly order the T-shirts online without delay. This could save you the time, money (mainly for the software unless you are using free ones like GIMP) and you also get a good preview of the design. I could more T-shirt manufactures providing such an option very soon in the future.