In Safari, when you create a new bookmark by pressing Command+D or by clicking the “+” icon in the toolbar you see this pop-up window:
As a highly organized bookmarker, not having the option to make a new bookmark folder from this pop-up is a big pain. As you can see, I’m bookmarking a motorcycle helmet, but don’t have a folder for “Helmets.”
BTW… a sub-hint here is that you can click the folder list (“Computers” in the above image) and start typing the first letters of the folder you want to appear instead of finding it manually in the list.
However, the problem this hint fixes is when you don’t already have a folder. The hint is that at this pop-up window, you can press Command+Shift+N – this will automatically open a new “Organize Bookmarks” window and create a new bookmark folder, ready to be named:
Just put the folder where you want, go back to the original bookmark pop-up menu, and select the new folder you just created.