They wont be acceptong them back after June so if you have any around you need to take them in soon. If you dont use cards what are you supposed to take abroad cash? Very risky

Travellers cheque's are old hat now, many places will not take them only take currency, nothing wrong taking cash if you are senseable with it, besides some countries you have to take a card, Euro's or Dollars because they won't take Sterling. Or because you cannot buy their currency here.