The plastic trash can that is made today is perfect for bathroom with touchless faucets and automatic soap dispensers. This is the cheapest and easiest trash can to use for cleanliness. Plastic that is placed over stainless steel makes it even more robust while still being easy to clean.
Mint Extract: If you favor neither the smell of citrus nor vanilla, you can perhaps use mint extract instead. Pour several drops of mint extract on a couple of cotton wools. Toss the cotton wools inside the confined space and leave them for a couple of days.