Complete Sentences

 I comprehend what complete sentences are.  I know what does and doesn’t comprise a complete sentences.  The thing, though, is that when writing about my own thoughts and ideas, I often want to use separate phrases that are not complete sentences.  I don’t want to follow the grammatical rules about sentences.  I feel that sometimes one can express themself better without being constrained by a requirement to only use complete sentences.  I do, of course, believe that it is important to at least understand what does and doesn’t make a complete sentence and to at least be grammatically correct most of the time.