This is the tricky part of the subject! There are loads of designs available on the good old internet that you can seemingly just print off and use. Please be aware however of copyright and respect the designers skill and time it takes to make the designs. Copyright varies from country to country but with the wonderful world of social media, it is easy to upload a picture of something you have stitched and before you know where you are it is out of your hands (if you upload something you have stitched to the internet, always credit the designer). Basically, you can't make money by using someone else's design without their say so. If you intend to sell it or make kits out of it etc, and it's not your own design your are breaking copyright laws, UNLESS it says somewhere with the design that it is free for you to use (some magazines do say this so check first) or you have been given permission to use the design directly. If you want to stitch it for your own personal pleasure then thats' absolutely fine!
We have free designs on our website for you to use non commercially (i.e. please don't make money from them). You can download them from here and print them off. I will keep adding to this to build up a library of designs for you to use.
Of course the best thing to do is to design your own, but this is another subject all in itself that I will tackle another time!