Regardless of if you are a sports fanatic or just starting out, it is important to wear the correct clothing and shoes to avoid injury and stay safe when exercising. If you are going to take up running, then you should really invest in a good quality pair of running shoes. These are often different to fashion trainers. A good pair of running shoes should support your feet in the right places and can even correct some posture issues. Most sports shops that sell running shoes have technology that allows them to check how you run and advise the best sort of trainers to buy. They will also check what type of terrain you run on such as tarmac or grass as again this can have an influence on what type of shoes you should wear.
If you are going to be cycling or running during the time of day when it is dark then you need to ensure you have lights fitted to your bike and wear reflective clothing. You may also want to invest in a head torch to light up the way in front of you.
Yoga is a great way to relax and benefit from exercise at the same time. You may want to invest in a yoga mat as the floor can be quite harsh on your body. You should also wear quite fitted clothes to avoid tripping over when balancing.