One of my readers did ask if there is a way to find all the workflows that use a particular picklist.
A little bit of digging and here you go:
select pppf.folder_name as [Folder], ppf.folder_name as [Folder], pf.folder_name as [Folder], f.folder_name as [Folder], w.WORKFLOWNAME, pl.SHORTDESCRIPTION as PicklistName from OC_WORKFLOWS w inner join OC_SCREENS s on w.SCREENID = s.SCREENID inner join OC_SCREENCONTROLS sc on s.SCREENID = sc.SCREENID inner join OC_PICKLISTS p on p.PICKLISTID = sc.WORKFLOWPICKLISTID inner join OC_PICKLISTLANGUAGES pl on pl.PICKLISTID = p.PICKLISTID left join OC_ADMINCONSOLE_FOLDERS f on w.folderid = f.folder_id left join OC_ADMINCONSOLE_FOLDERS pf on f.parent_id = pf.folder_id left join OC_ADMINCONSOLE_FOLDERS ppf on pf.parent_id = ppf.folder_id left join OC_ADMINCONSOLE_FOLDERS pppf on ppf.parent_id = pppf.folder_id where pl.SHORTDESCRIPTION = 'Picklist Name'