Eau Sauvage is indeed short lasting, especially when you spray it just a few times.
My advice is moisterize your skin before spraying, then spray Eau Sauvage at least 3x! at same spot (like 6 neck and 6 chest sprays). If u do, u'll get 2 hrs the most out of it, if you do the normal "3" sprays, it's gone for sure after 30 mins.
Test it on your arm.....1 spray on left and 3x sprayed at same spot on right arm and experience the difference in longevity!
Mind that ES can't be oversprayed and will never get cloying (imo).