"Plans are useless; planning is indispensable," according to Dwight D. Eisenhower, then Commander of the Allied Forces in Europe during WWII. Now, you may be in total agreement with the first part of that statement, but you are really not convinced of the truth of the second part.
But your idea may be so new that you may also need to talk to potential customers, host some focus groups, talk to an ad agency, or maybe even make a prototype and float it past some people. Be prepared to spend the time. Remember, it's not about the Plan but the Planning.
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There are many advantages of utilizing business plans consultants especially if you are new trading. This kind of agent will take you by the hand and guide you in the hard tasks involving planning and starting up your enterprise. They can give you a hand when you're being lost plus inform you of the key official elements of setting up a firm which in turn if they're not used could quite possibly drop you in hot water. They might conserve your time, just by creating a plan to suit your needs it's going to free you up to get going with the practical activities.