Soldato
Santander issue £5 notes in their ATMs inside their branches. Sometimes I get £20 out and all fivers. Then other times I withdraw £60 and get 2 or 4 £5s.Or just having more fivers around. A lot of cash machines don't dispense them any more.
Personally I'd look at phasing out coins under 5p. Sweden has made it work, they have nothing under 1kr now (which is the equivalent of about 8p). Heck even 30 years ago the smallest was 0.5kr (~4p). What confused me a bit was they still had prices in supermarkets with smaller denominations but you didn't get change, it was just rounded up.