Vacuum Cleaners Discussions

Hi I have an office area. It is a real mess cleaning up the area all the time. I am not in a position right now to hire a janitor. I have a vacuum cleaner with me .But the vacuum cleaner bag seems to be damaged. Can you please put up some suggestions so that I can tackle the issue? Should I buy a new vacuum cleaner or can I have the option of replacing the bag? Please let me know if there are some good ideas. I have to arrange an immediate program in the office area. Your opinions will be much valuable for me. Thank you.