What's the best way to save �50 a month?

Halifax have a high interest savings account offer right now. 10% pa. if you deposit between �25 an �500 per month. The rate is ony fixed for 1 year and they will have the right to move you to another HFX account after that time, but you'll get 10% on whatevr you've saved. Of course, you'll be taxed on interest, but if you withdraw your money at the end of the year you'll have a free �60 and then you can put it all in an ISA.