I write to you from my vacation, meaning, this time, the dusty port town of Kaolack in sunny Senegal. (What, your vacations don't involve long hours spent riding in--or, sometimes, on--overcrowded West African inter-city public transit? Weirdo.) On arrival I picked up an Orange SIM card, which cost 1000 francs (US $2) and came with 1000 francs of credit. And then my cab driver kind of blew my… Read More