You have no problem handling file names with dates attached but now you are wondering “How do I label files so that my most frequently used items come to the top of my list when my computer only files by number or alphabet?”
Use letters like numbers to help your computer file by frequency of use. If you use a file often, start the file name label with an A (or AA, AAA depending on the number of files you are labelling). Start the file name of those files used least often with a Z (ZZ or ZZZ etc.)
Your computer will obligingly file alphabetically reading those letter first and your files will be listed according to frequency of use.