Give the engine a quick check - Top up the oil and the water. Any prospective buyer may have a look and if the level of engine oil is low, it will surely put them off. Make your car look like it is well maintained.

Make it smell delightful! - Buying a house is as much about the feeling when you walk into a house as the practicalities of it. To help make that impact on the emotional level and get the overall effect of pleasing the senses the smell of your property is important. The classic is to bake some cakes in the oven letting their fantastic smell filter through the house. Even if you are not a chef, buy some ready made cake mix or bread dough.