Je n'ai rien dépensé pour laisser ma salle de bain sentir toute l'année !

"Je n'ai rien dépensé pour laisser ma salle de bain sentir toute l'année !" is a French statement that translates to "I didn't spend anything to keep my bathroom smelling good all year round!" in English. The statement suggests that the person has found a way to maintain a pleasant odor in their bathroom without spending any money. It could be that they have found a natural or DIY solution that works well for them. Without further context, it's difficult to know exactly what method the person is using. However, some common natural or inexpensive ways to keep a bathroom smelling fresh include opening a window to let in fresh air, using essential oils, baking soda, vinegar, or lemons to clean surfaces, and regularly washing towels and bath mats.