My new editor - Geany
I have been using the default text editor in Ubuntu, Gedit, and have modified it to work it like an IDE. It worked good, but still lacked a lot of features which a good IDE would have (like code folding, symbols browser etc). Lately, I saw a blog post with a mention of few new IDEs around which are as light wieght as G-Edit. That is when i first heard of Geany.
Geany is a lightweight but surprisingly powerful GTK-based IDE. I am totaly sold over it and it has become my default IDE in just 2 hours of playing around. Works beautifully with Python, Django, HTML, JS, CSS and FreeSWITCH C source files. Thats all i need for my coding. But Im sure it plays well with other languages too. It has advanced features of an IDE and remains very light weight.