If you are looking or a simple and quick way to remain clean and fresh, then deodorant spray is the thing you need. Deodorant sprays have gained their popularity because of their quick drying quality.
The best part (other than helping you smell good) is that it does not leave stains on your clothing. It does not keep you from sweating like the antiperspirant, but the essential oils and other ingredients used for fragrance will help you mask the unpleasant odour coming from your body.
It need not be used more than once a day (for all lazy guys). But if you plan on hitting the gym or engaging in some other physical activities like sports then it is recommended to use deodorants more than once or twice.
If you have sensitive skin and plan on switching from one deodorant spray to another, it is better to consult a doctor before you do so and know what type of sprays are suitable for your body.