Concept Bikes & Bike Innovation - for better or worse

If you have a rack, just tie the shopping bag together;

Plus;

Highway Code 66

You should

keep both hands on the handlebars except when signalling or changing gear
keep both feet on the pedals
never ride more than two abreast, and ride in single file on narrow or busy roads and when riding round bends
not ride close behind another vehicle
not carry anything which will affect your balance or may get tangled up with your wheels or chain
be considerate of other road users, particularly blind and partially sighted pedestrians. Let them know you are there when necessary, for example, by ringing your bell if you have one. It is recommended that a bell be fitted.