She has no immediate need for the money (starting A Levels in September). Initially I thought a junior ISA but she has a S&S Child Trust Fund but you can't have both, and I don't want to put a lump sum into that.
Anything obvious we've missed? Just thinking of a savings account with the best possible interest rate, including locking some/all of it away for 1/2 years until she thinks about options post sixth form.