How will you fix cross browser issues for CSS and JAVASCRIPT?

http://www.catswhocode.com/blog/15-techniques-and-tools-for-cross-browser-css-coding

1. Reset CSS
2. Internet Explorer conditionnal comments
3. Internet Explorer hacks
4. Targeting Opera only
5. Targeting Safari only
6. Targeting Google Chrome only
7. “Browser Detect” PHP Class
8. JQuery browser detection