i Donāt wanna use System folders, which made me waste too much time and many time i even forget about those Notes. So, i was trying new method.
I saw @kepano use Category as folder and create a file on for that category for faster browsing, and i liked it, except, i am not creating a file for just a category. I Can use .base file for that. So, those unlinked Files that i made For 
FOLDER property. just simple text, not links. there are times i accidentally create those file. and i even lose an element because of that, which took me times to add again.
As for tag, i didnāt try it, but itās could be faster, you know, just click on the tag and it will appear on search, and if i keep it collapsed, then i can brows it normal file. Doing the same with folder property need to add property folder and then elements.
So, I was thinking to start using Tags like #F-Skill like this, which will keep it different from other tags and i can easily use it to browse.
If someone using these method for folders, Hope will help out.