Most creators write tags in the ninety seconds before posting, which guarantees they reach for the same twelve every time. A library fixes that, and it takes about an hour to build.
Six columns
Open a spreadsheet. Columns: tag, group, platform, difficulty, last used, notes. That is the whole schema. The CSV export from the generator drops straight into the first four.
Groups that map to content, not to theory
Do not organise by the tool's categories. Organise by the kinds of post you actually make. A baker might have: sourdough, laminated pastry, equipment, behind-the-scenes, local. A consultant might have: hiring, process, case study, opinion, industry news.
When you sit down to post, you know which bucket the post is in, and the tags are already there.
The rotation rule
Within each group, keep ten to fifteen tags and use six to eight per post, rotating which ones. The last used column makes this trivial — sort by it and take from the top.
Rotation matters for two reasons. It gives each post a distinct signal, and it makes your analytics readable, because variables actually vary.
The notes column is the valuable one
Every time a post performs unusually well or badly, write one line. "Ranked top nine for two hours." "Tag page is all bots now." "Nobody in this tag is in my country." Six months of these notes is worth more than any tool's difficulty score, because it is your data about your audience.
Quarterly review
Every three months: remove dead tags, promote the ones your notes say are working, re-run the generator against your core keywords to catch new combinations, and check nothing has become restricted. Twenty minutes, four times a year.
Share it with your team
If more than one person posts for the account, the library is the difference between a coherent tagging strategy and four people guessing independently. A shared sheet is enough — no tooling required.