Sometimes you just need some help getting started. An outline can help you put your thoughts to paper before you piece a PowerPoint slideshow together. You may not be aware that you can use the versatile Outline View feature in Microsoft Word to quickly make a streamlined PowerPoint presentation. The tips provided in Turn an MS Word Outline into a PowerPoint Presentation will show you how.

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If a standard title and bullet point slideshow just is not what you need, you can create other types of PowerPoint presentations. For example, check out Creating a Debate PowerPoint Presentation for tips on how to present a debate, slideshow style. Maybe you just need a basic presentation, and you need it now. You can recycle past PowerPoint slides after reading How to Use the PowerPoint Slide Finder.
For some sound advice on what should (or should not) go into your PowerPoint presentation, check out the Bright Hub series, Get Creative with PowerPoint. Even the most practiced of presenters is likely to learn some new tips and tricks there.