If you like stencils like I do, then here is a tip just for you. Take duct tape and make a frame around the edge of your stencil. This will make your stencil stronger and prevent media from going where you don’t want it to.
Speaking of stencils, if you use spray inks, here’s a bonus tip. Once you spray your stencil, take a piece of cardstock and place it over the stencil and press. Turn over and watch what happens