On this thread, you can post (and describe) any outfit worn on any episode of Three's Company, whether it's by a main character or guest-star.

Let's start with this outfit by Janet Wood (a pink long-sleeved shirt and blue tennis shorts):
https://www.sitcomsonline.com/photopost/data/925/ThreesCo7001.jpg

Janet wearing a shirt with buttons:

https://i.pinimg.com/originals/1f/16/5c/1f165cc5a00459d2524fde25d61d1642.jpg