- any images make sure they are compressed as much as possible while looking acceptable
- textfields, dont embed all the font glyphs, embed only the characters you need
- any embedded audios, make sure they are compressed
- remove any libraries that are not used
- remove the UIComponent flv player which adds a lot of space and create it with code, this will save a ton of code for you
example: http://blog.martinlegris.com/2008/06/03/tutorial-playing-flv-video-in-plain-as3-part-1/