I like to slice my steak SUPER thin. Seriously, like paper thin (like at the Mongolian BBQ restaurants). The thinner, the better. An easy tip for slicing steak is to freeze the steak for 10-15 minutes before slicing, then slice it with a sharp knife. I also like to cut it on a 30 to 45-degree angle against the muscle fibers instead of slicing it straight down so I can get it even thinner. You will find that the flavor is better, and it is easier for kids to eat. It also absorbs the marinade better.