Start Using Semantic HTML!!! It saves you time AND increases both compatibility and accessibility. [div id="mainWrapper"][div class="para"][/div][/div] is 10x worse than [main][article][/article][main] in all respects possible, primarily to you the webmxter - markup readability and coding speed.
Really though. I've been 10x happier since my markup stopped ending in /div /div /div /div /div and instead ends with /p /content /section /article /main
( standard angled brackets are autowiped in comments, so they're replaced with [square brackets] here)
Really though. I've been 10x happier since my markup stopped ending in /div /div /div /div /div and instead ends with /p /content /section /article /main