If an absolutely brilliant business idea has struck you, do not hurry to realize it - first consult with somebody really interested in this question, for example, your boss. Otherwise you may have to go through some very unpleasant experience. Initiative in business is very necessary, but you'd still not miss talking it over with your boss.
Those wishing to achieve more than they have now, first of all should count what they have. There is a possibility of trading bad for worse as result of a mistake in the assessment of current state of affairs.