Collecting
Start a collection with the caps you already have
Choose a small theme, make a simple record and leave room for surprises.
The first decision in bottle-cap collecting is not what to buy. It is what you enjoy noticing. Lettering, colour, local bottlers and familiar drinks all make good starting points. The Crowncap Collectors Society International describes collectors who specialise by beverage, place, brewery or era; you can start just as narrowly.
Give your collection a small boundary
Try “caps from drinks shared with friends” or “five interesting blue designs.” A theme helps you see differences without needing a large collection. Keep an undecided section for the objects that do not fit yet.
Record what you actually know
Give each cap a simple number. Photograph the front and underside, then note the words you can read, where it came from and when you received it. Separate the date you found a cap from the date it was manufactured.
Keep the record with the object
A compartmented container and a matching list can be enough to begin. Avoid writing directly on the cap. If it is dirty or corroded, photograph it before considering any treatment; cleaning can remove evidence as well as dirt.
Keep bottle caps away from young children. You can enjoy collecting without buying drinks for the caps, searching unsafe places or spending money on rare examples.