theres lots of things you can do to get a nice smell, there are of course the time release sprays the gels the fan&block, the pineapple chunks mmmm and the high quality citrus oils you can buy by the gallon as well as many other things. i find the best thing is to clean properly. if you are doing toilets to clean the wall and floor adjecent to the toilet and rinse thoroughly every day this removes the ammonia especially from mens rooms. the ammonia is the problem tackle that and win and even basic disinfectant will smell nice at the end of the day.