Now that my daughter is almost two and has been in daycare full-time for a year I feel I have finally figured out what clothes I actually need for each season, and more importantly how many items of clothing I need. For me space is an issue, I don’t physically have the luxury of storage in my house like I am used to in the US. I only have a small dresser that you can see in her nursery.
Since I buy clothes on sale/ clearance only and often buy items in advance (I have clothes for her until she is 5!) I use one drawer in her dresser for everything that is the right size and season, and the drawer below is for the next size/ season. This has worked well because it forces me to not over buy, but also allows me to instantly see what I already have for the next size/ season. Even though the drawer is small, with my clever folding I am still able to fit a lot and probably too much to get good use out of things.