Do you like to cook? If you do, you probably spend a lot of time in your kitchen. There are many things to keep in mind when it comes to keeping your kitchen running well, and since you are dealing with heat, large appliances, and in some cases open flame, it is important that it is properly made.
Take your kitchen fan for example. It has a filter that needs to be replaced or cleaned regularly, since the greasy steam coming off of food when cooking can cause it to become a fire hazard.
Your wall receptacles around the sink should be GFCI receptacles to lessen the risk of electrocution. The sink itself needs to be sealed up well since leaking water can cause mold growth and other issues.
Your appliances need to be well maintained as well, and you should not try to run them until they die, since you usually are wasting money on energy-hungry older appliances.