We used to do drills when our dc were small, but haven't since they all reached adulthood.
We actually had a fire 8 years ago which destroyed the kitchen and caused damage through most of the rest of downstairs. Things we have that helped save dh/the building:
Fire door on the kitchen contained the fire to that room until the fire brigade arrived.
Kitchen to the side of the main house with a flat roof meant no-one sleeping above it. If this isn't possible (most houses), I would now only use any rooms above a kitchen as a day space/ guest room to avoid people being asleep in it.
Working smoke alarms throughout the house that are checked weekly and batteries changed annually- we used to do this over Christmas figuring we wouldn't miss the extra expense. I the end the dog woke dh before the alarms went off due to our fire door working so well.
Keep all doors closed especially at night.
Keep keys in the door locks for an easy escape. Dh worked nights so although he was home asleep and the rest of us out, this made his escape easier. It's not easy to see in smoke.
Make sure escape plans include pets. Children need to know that they can't hunt through the house for the cat. We used the cat carrier as our cats bed so we could just zip it up if needed. Stress test these, wake the kids at night occasionally. Practice.
Park sensibly so fire engines can get through, and if you see one on lights, get out of the way. Our fire fighters lost valuable minutes because cars wouldn't let them through bottlenecks. They were really frustrated. We live a few miles away from this tragedy and those roads are so narrow I can imagine it wasn't easy for the rescuers to get there.
We recently arrived at a hotel which didn't meet fire safety regulations- we left. Assess the risk when you are away from home.
A good insurance policy to deal with the aftermath.
Ds1 has recently bought his first home. One of his first purchases will be a properly fitted fire door for the kitchen.