Oh, I am so late. I have read only a few of the responses. I agree with Angie that you mix and match ALL the time, just look at your posts and see how the same dress jacket skirt or trousers travel through out your wardrobe.
I certainly understand the desire to do it. Creating a capsule is akin to having the space and time to set your closet up like your favorite store with everything in its place and a place for everything. You can just grab what you like and go. It's SO satisfying!
Today -- you'll see later on, when I post. I took the time to actually create a fall capsule for my daily life based on Angie's post from last week. I've had great success creating travel capsules which focused on weather, time restriction and the need to wear a piece multiple times. I thought maybe I should finally create one for my real life. At some point I felt like I had to take my admiration for Ingunn and Suz's skills and use it to create a capsule for the way I really live right now.
I wish I could tell you that I was super organized about the process and it only took me an hour. NOT! The entire process took 6 hours. My inspiration was berry tones. When I had all solids, although the tops were different styles the colors were too similar.This meant I had to work hard accessorizing to make the outfit pop to my satisfaction. So back to the drawing board I went looking for printed tops.
I feel so silly saying this but I am so proud that I was able to put together a capsule that is polished enough to go to work (which I am sure will be coming soon!), sassy enough for date night and casual enough for Saturday errands. I managed to use pieces that I loved but were not being worn enough. It fulfills my goal from January of integrating my "work" wardobe and my "off-duty" wardrobe into a cohesive style that represents my evolving aesthetic in every area of my life.
All of this is a long way of saying that even though you have an intuitive way already in place of creating capsules it is worth it to struggle through the process of creating a capsule because you discover things about you and your wardrobe, what you have too much of, not enough of, etc. At the end of it all you will have this matrix that's literally ready to go.