This will help delay the onset of age-spots. While doing household chores make it a point to wear rubber gloves. It is a good idea to wear cool cotton gloves whenever possible. Cracking your knuckles can give you wobbly fingers. So stop breaking them unless you want fat fingers, which you think are a turn-on.
Long nails can look very elegant, but only if they are kept clean and in shape.
File them regularly with a filer. Dirt in the fingernails can show how clean you are. So if you can't keep nails clean, keep them short and simple. Always remember to apply some moisturizer before going to bed. This increases blood circulation.