There are lots of things you can do on a regular basis within your premises to reduce the chances of a fire starting and if one does, increasing your chances of making it out to safety. These include:
Checking your escape routes are clear
Making sure you can easily open your final exit doors
Clearing away any unnecessary combustible materials from inside or around the perimeter of your building
Making sure you do not have electrical extension leads interconnected
Keeping potential ignition sources away from combustible materials
Ensuring your staff members do not use portable heaters underneath desks or close to combustible materials
Removing any wedges from fire doors
Making sure your fire alarm and emergency lighting tests are up to date
Keep on top of your staff fire training requirements
The above list is not exhaustive but it all helps....