Book a taxi to Jordan; check. Reserve one night’s stay in advance at the International Youth Hostel in Amman; check. Inform British Embassy and close friends of travel plans; check. Withdraw enough dollars to pay for car, visas and a little extra to oil the wheels of officialdom (if required); check. Register with the Foreign Office’s LOCATE service and consult latest travel advice; check. Discount official travel advice and get the latest perspective from a range of trusted local sources; check. Stock up on enough food and water to keep the taxi driver watered and fed for the journey; check. Purchase some Lebanese Cafe Najjar (with ground cardamom) for a…