What is the difference between gram's stain and wright's stain?

Well, sweetheart, Gram's stain is used to differentiate bacteria into two groups based on their cell wall composition - either Gram-positive or Gram-negative. On the other hand, Wright's stain is a Romanowsky stain used in hematology to stain blood cells for microscopic examination. So, in a nutshell, one is for bacteria and the other is for blood cells. Hope that clears things up for you, darling.