Save to current folder instead of "Document Library"
In a corporate environment you often have 1000+ people on the same server, with 10+ levels of subfolder defining your little part of it. So, it's a REAL PAIN when every time you want to save a copy of a workbook to your folder (or maybe a new subfolder of the current folder's parent) that you are always thrown out to the "Document Library" so that you have to navigate back through all the subfolders to where you just were. The "Document Library" is a fixed location, so it should be accessible via a button on the Save As dialog, and you should always be presented with the current folder you are working in.
CDF C commented
Ron West, if I'm reading your request correctly, I think this feature is already there.
Try going to File > Options > Save, then tick the box "Save to computer by default" and type the path to "your folder" (as you put it) in the "Default local file location:" field.
This won't present you with the current folder that you're working in, but it will take you to the folder you typed in that field.
If this is not what you're asking, please ignore.
Jeff Bishop commented
You can pin your favourite folders to the save as menu.