Make sure the blister pack colour/graphics is finished and do a 'spidergram' or 'brainstorm' of a drinks bottle. it is for a high energy sports drink and please do sections on 1) possible flavours, 2) possible names for the product, 3) the target market, 5) possible shapes for the label, 6) the 'feel' of the label, that is, whether it is for example subtle and sophisticated, brash and bright, has a luxury look, looks like an economy product, etc etc.
You will find an example of a spidergram in the section on the GCSE Graphics page which shows 'Exemplar' Work. The spidergram is the 14th example down. Click on the picture to enlarge it so that you can read it.
Mr. Bower