Hey Alex,
It's a asynchronous vs synchronous task issue - some projects involve completing tasks in sequence, some at the same time
I've have a blog post planned for this, as I'd like to devise a solution myself to present to Cameron
You can try the following tips:
1. Due date (e.g. 15/05/2013), then;
2. Hierarchical using sub tasks (i.e. tasks processed dependantly/asynchronous) - date atleast the first (parent) and/or next task, then lastly;
3. Numbered prefixes (e.g. 01, 02 etc.) (i.e. tasks processed independantly/synchronous)
Hopefully this is useful
Regards,