Consider taking your spreadsheet a step further; add photos and provenance.
Have you determined the value of your collection(s)? What did you discover?
Whether your collection is small or massive; by assessing the values you can decide if you’d like to buy separate insurance or simply add a rider to your current homeowner’s policy.
Certainly it’s not necessary for all types of collections, but do you keep any sort of records for those that do?
As you grow the collection you love you may want to create a simple spreadsheet to keep a record of the items you’ve acquired.