One of the biggest annoyances I've had with text editors is the processing of Microsoft Word formatting. When a user cuts and pastes from word, all sorts of span tags with inline styles also come in. This happened in WYMeditor too. The resulting code:
<p class="MsoNormal"><strong style=""><span style="font-size: 10pt; font-family: Arial;">35. Promotions: & Opportunites
(use image jross_495)<o:p></o:p></span></strong><br /><span style="font-size: 10pt; font-family: Arial;">36. Shop
til you Drop<o:p></o:p><br />37. Dance
Fever<o:p></o:p><br />38. Under
Wraps<o:p></o:p><br />39. Pucci
Power<o:p></o:p><br />40. Full
Forward<o:p></o:p><br />41. Romper
Room<o:p></o:p></span></p>