My weight tends to fluctuate a lot. I feel like I am maintaining three separate wardrobes. It's disheartening and expensive.
___________________________________ Small, Medium, Large
With a little resourcefulness and ingenuity, you will have one all-purpose wardrobe.
First, buy all bottoms; jeans, trousers, skirts, in your largest size. If you lose a few pounds, you can easily use a large safety pin to make the waistband a bit tighter. If you wish to camouflage this, wear a jacket or an untucked shirt. But if you don't, people will compliment you on your weight loss.
Buy all blouses in the middle size. If one gets a bit snug, safety-pin the front so it doesn't gap across the bust. Once you lose a few pounds, wear it open over another shirt, jacket-style.
Presto! One workable wardrobe.