It's important that the prospective buyer to be able to imagine this as their new home and can see their belongings in the property so it's also important that everything is tidy and neat. The less clutter you have will help make your property look bigger.
If you have an idea in mind on how you want your house to look but don't have the furniture for it, you may want to hire some furniture to create the look that you are after. If you have any burnt out bulbs or leaks ensure that these are fixed before any inspection as this may leave a negative thought on the potential buyers.
A fresh coat of paint is an excellent idea as it will certainly brighten up the property and make it more appealing. If you have any pets ensure that you have cleaned up after them and take them out of the property when people are viewing your home.