You can assign clothing and rings to any of the sets, freeing up inventory space in the process and allowing you to easily switch between outfit sets using numbered buttons below the equipment slots.
You can also swap items between sets by picking up an item from one set, switching sets, then placing it in the new set.
Sets are saved in the player's save file.
Technical
Requires SMAPI, uses Harmony.
Implements a Generic Mod Config Menu interface to change config settings in-game.
Compatible with Mod Updater for automatic updates.
Code is at https://github.com/aedenthorn/StardewValleyMods.
If you want to complain or ask for help or help me test my mods, you can visit my Discord server.
A list of all my mods for Stardew Valley is available at https://www.nexusmods.com/stardewvalley/articles/895.