typically enough on its own to keep your shoes clean. the ideal is to brush your shoes after every wear. however, you’re not going to do any serious damage if you do it once a week.
the next step up is a suede eraser. this gives a bit more friction and can help you fight the really serious stains. most drug stores will sell a kiwi pack that’s the plastic brush and eraser together.
if your suede gets real bad, you can use a sponge and shampoo to remove the stain. just be careful as too strong a shampoo can also effect the overall quality of the suede.
the last tip i can 