Don't panic, I won't join the masses in praising del.icio.us for it's greatness. I have just used it for quite some time now and got slightly addicted to it. Of course I don't use it without any alterations to the standard workflow — that would be dishonourable for any programmer. One thing that I use almost daily is an extended post bookmarklet. It differs from the default posting bookmarklet mainly in these aspects:
Feel free to use this bookmarklet. Updated will be announced at this page. To use this bookmarklet you will need to create a bookmark with the following link. One of several ways to do that is to simply drag it to your bookmarks toolbar:
del.icio.us post Version 1.1
Update: Fixed the quotation. Now you should get the complete bookmarklet when copying it.
Additional note: Of course, if you want to use the bookmarklet, you will have to replace my del.icio.us username with yours after copying it. To do that, drag and drop the link to your bookmarks toolbar, right click the newly created bookmark and choose "Properties". In the properties dialog, find the name "rompe" in the bookmark address (it's near the end) and replace it with your username. Press "OK". That's it!