I always dressed my girls alike when they were little. One in Pink and the other in purple. You say you won't do it but it is so much easier to buy two of the same when they are little.
Now they are ten, they have totally different styles and dress nothing alike. They are individuals with individual tastes, despite a mother who dressed them the same

With Ivy and Noah, I dress them totally different. People still ask all the same twinny type questions regardless - matching clothes or not, they will always be linked together as twins.