Buy towel and bath mat sets to ensure cohesiveness.
Instead of trying to piece together a collection one by one, invest in a towel set, which often includes multiple hand towels, washcloths and full-sized towels. If you need more than one bath mat, try to find a matching pair so they don't clash. Although the towels and bath mats don’t need to be matchy-matchy, they should be complementary colours or include only one pattern; after all, you don’t want the room to appear too busy or overwhelming, especially if it’s a small space.
Invest in a high-quality shower curtain and liner.
Once you have the perfect towels and mats, be sure to pick out a shower curtain that blends well with your other colours. Even though there are a lot of beautifully patterned shower curtains out there, be wary: Because of its larger surface area, a complex, multicoloured curtain can appear gaudy or over the top. Once you’ve found the perfect fit, keep it nice and clean for years to come by purchasing a shower liner to act as a water barrier.