What is complicated about it? I typically keep a handful of tabs open in Finder and drag and drop between them or to applications. You can also always do CMD-C and then either CMD-V to copy a file somewhere or OPT-CMD-V to move a file.
1. Ctrl + Cmd + C to copy the folders path
2. Cmd + N to open a new Finder window
3. Shift + Cmd + G to open the "Go to folder..." menu
4. Cmd + V to paste the path
5. Enter to go to the pasted path in the new finder window
The other option is to right click the folder and open it in a new tab. But this doesn't open a new window.