So our shower/tub is horrible about mildew, soap scum, and mold. I can clean it and in 4 days it's disgusting again. My husband and I only shower once a day so it's not like it's always in use. Lol. Does anyone have any idea what I can clean it with that will stop or at least reduce the soap scum/mildew/mold? I clean it so much and it's so annoying. Also, can I wash a vinyl shower curtain in the washer? My mom always has, but she has a front load and we have the one with the thingy in the middle. Thanks ladies! :)

I should say we shower once a day during cooler months when we don't sweat a ton.