Usually, unwanted paper makes a mess, so before organizing file it is feasible to trash out the unwanted papers.
☛ Keep those paper in a separate folder of the file that is of a permanent use like insurance policy, paper regarding taxes, medical records, retirement and investment documents, etc.
☛ Manilla folders come handy when it comes to organizing files
☛ Organize the paper or bills according to dates
☛ On regular basis look into the files to get rid of the bills or document, you might not need any longer
☛ Correctly label each file and organize its alphabetical order, for instance, accounting file should be in a folder A likewise your utility bill should be in U folder.