Easy ways to add last minute polish
The audio tool is a fantastic way to make cool sounding music all from within your browser. Make 10 short loops and randomly loop through them for a simple background track. The tone matrix tool is particularly awesome.
Sticking to a palette will improve the appearance of programmer art tenfold. The palettes are only of 5 colours so try finding two matching palettes to get a good range.
If you know any other handy sites like these, post them so we can all use them 😀