Choose a simple format: a notebook, spreadsheet or phone note. Record the product's exact name, format, when you tested it and the three strongest impressions.

Add a second observation after the dry down. You may notice that a scent feels more comfortable after an hour, or that a favourite opening does not last in the way you enjoy.

Review your entries after several tests. Repeated preferences are better buying clues than the latest trend or the most elaborate bottle.

Good notes make discovery easier rather than more complicated. Use them to support practical decisions about what to sample, wear or buy. XASIS currently presents its Signature Five as fragrance design concepts in development; final notes, formula details and availability are confirmed only for finished products.