For an ensemble that's super straightforward but can be manipulated in a ton of different ways, make a black crew-neck sweater and black chinos your outfit choice. A great pair of white canvas high top sneakers is the most effective way to bring a sense of stylish casualness to this ensemble. Keep this outfit in your front hall wardrobe when spring comes, and rest assured, you'll save a lot of time getting dressed on more than one morning. How's that for fashion inspiration for casual dressing during your teenage years?