As I entered Sele La camp (4290m) on the way from Kangchenjunga North to South Base Camp trails, I was surprised to see an open-air shop run by Lobsang. I bought a Pepsi and then looked through his merchandise, and bought five pieces: two stamps (om mani padme om and the never-ending knot), a pendant with Buddha's head on one side and om on the other, a brown bracelet of Buddhas, and a brown necklace with om interspersed. Now that’s customer service.