You can reduce the risk of falling by removing things from your home that may cause you to trip. This would include heavy shag carpet, throw rugs, stacks of magazines or papers, and anything that clutters your rooms or hallways. You might be able to arrange for someone to come to your home to recommend changes to reduce your risk of a fall.
You can reduce the chance that a fall will be permanently disabling with weight training and exercise. Exercise, and especially weight training, strengthen bones and is appropriate for people of all ages. It is particularly helpful for the elderly.