Common realtiy checks didn't work for me . I never have digital watches in my dreams and text is very stable. My reality check bases on looking my surroundings heedfully and thinking "Is this a dream? How did I get here? Where was I before?" and imagining feeling like being in dream. All of my LD is trigerred by this thought. When I know I'm dreaming I don't need any other reality check, because actions I'm doing in LD isn't dangerous.