Universal Containers (UC) has several picklist fields on the Account object whose values are routinely...

To manage frequently changing picklist values effectively:

B. Set up Global Values in Picklist Value Sets. This approach allows for centralized management of picklist values that can be reused across multiple fields and objects. By using global value sets, inactive values can be efficiently managed and deactivated without impacting fields that use these sets.

For further information on managing picklists, check Salesforce's Picklist Management guide.