In the given situation, which one of the instructions is correct?You have got to go either to the baker's or to the butcher's first. You might decide to go the butcher's first, in that case you'll have to go to the barber's afterwards. If you decide to go to the baker's first, then you'll have to go the builder's afterwards.

Writing instructions can help someone carry out a task they are not familiar with, or have never done before. The best way to write instructions is by using the imperative mood: this just means that you use the dictionary form of the verb to give an instruction, e.g. 'Stir slowly for two minutes'.