Perhaps try HTML Compressor, here's a before and after table showing what it can do (including for Stack Overflow itself):
It features many selections for optimizing your pages up to and including script minimizing (ompressor, Google Closure Compiler, your own compressor) where it would be safe. The default option set is quite conservative, so you can start with that and experiment with enabling more aggressive options.
The project is extremely well documented and supported.
与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…
