Your shoes, or comfort insoles, should provide enough cushioning and support for your everyday activities. They should also fit the length, width, and shape of your foot to prevent the development of foot problems.
Avoid pointed-toe shoes. These can compress your toes and lead to the development of foot bunions, knee pain, and lower back pain. Shoes with a round or square toe box are best for allowing enough space for your toes.
Try to choose heels that are less than 2-inches. High-heeled shoes can place undue pressure on the balls of your feet and increase your risk of pain and injury.
Find ballet flats with elastic along the rim of the shoe. This will help the flat to grip your foot better.
Shop for shoes later in the day. Your feet tend to swell (up to 8%) by the end of the day.
And finally, pamper your feet! Bathe your feet regularly with warm water and soap and make sure to moisturize thoroughly afterwards.