with the wool breeds you can tug the excess hair. gently pinch the wool, and slowly and gently pull out, it'll take all loose wool with it.
white vinegar can help keep white coats nice and white, just wet a paper towel and wipe him down. Neutering will prevent him from spraying himself (boys are gross). But if he does stain his coat, tear free baby shampoo will get it out also. Baths are rarely recommended, improper drying could make your bun sick, my Lionhead is trained to blow dry for that purpose.
watch for mats in the tail area, sometimes it's hard for longer coated breeds to keep their butt clean, also behind the ears and the ear wool can mat. if they're too bad, just clip them out and call it good.