I've been constantly updating both the front-end and back, and have a good permissions sql script which I wrote for PHP/mySQL and asp/access allowing user/group read, user/group write, user/group blocked from reading, user/group blocked from writing. It allows for multiple combinations of each too which is handy. I think this sql may be the most powerful thing I've written, taking me a couple of weeks for one line (it does a lot of other things too, all with one query)
I have an asp upload progress bar using ASPupload that's embedded in the same page. This is from their 3.0 version, which was made to pop up in a small window but using my livescript functions and XMLhttpResponse managed to hack it to work in the current page without the pop up or frames, or the bloated HTML tables with inline css.
The editable area only worked in IE though, and when I upgraded to 9 it stopped working. Before then my only script copied from online was for md5 encryption for asp. A little beyond my league I think. I recently downloaded rangy.js though as the problem I had was with the ranges when selecting content from the editable area. That was difficult to include into my method as well but managed to get that working again within the last couple of weeks. I'm just updating the editable area now (if I could stop procrastinating at sitepoint )
But there are more.....
Also, what I've been thinking about lately is shopping carts. As I don't need cookies to remember data between page changes, and I can import others' live data to my page, I can add items to a cart from multiple domains.
There are loads of other ideas too, the more I work on it the more I realise what it can do.
Anyway, that'll do for now, I've still got to update the PHP version as a friend requested a site and I want it done by the end of the week as I'm skint!