If you have any options, consider the type of floor on which you will be practicing. Your first choice should be a wood floor, if one is available. If your home is carpeted, it is best to practice on the most tightly woven carpet, such as industrial carpet, rather than on loose, cushy carpet, which is very difficult to balance on. In addition, if the surface is too soft, you get very slow feedback, so your body responses are also slow, which can be damaging to your joints. The worst surface you can practice on is concrete; however, marble and tile are actually quite good and you may even prefer them to carpeting.