One can buy sustainable white cotton t-shirts from various retailers and online stores that specialize in eco-friendly and sustainable clothing. Some popular options include brands like Patagonia, Pact, and Everlane, which offer organic cotton t-shirts that are ethically produced and environmentally friendly. Additionally, many boutique and independent clothing stores also carry sustainable white cotton t-shirts, so it's worth checking out local and small businesses that prioritize sustainability in their products. **

One can buy very affordable shirts at thrift stores, discount retailers, and online marketplaces. Thrift stores often have a wide selection of gently used shirts at low prices. Discount retailers, such as T.J. Maxx or Ross, offer brand new shirts at discounted prices. Online marketplaces like Amazon, eBay, or even Facebook Marketplace also have a variety of affordable shirt options. **

The best affordable long-sleeve shirts are typically made from high-quality, durable materials such as cotton or a cotton blend. Look for shirts that offer a good fit and are versatile enough to be dressed up or down. Brands like Hanes, Gildan, and Uniqlo offer affordable options that are comfortable and stylish. Additionally, consider shopping at discount retailers or online marketplaces to find great deals on long-sleeve shirts. **

You can find high-quality modern T-shirts at specialty clothing stores, online retailers that focus on contemporary fashion, and well-known fashion brands that prioritize quality and design. Look for T-shirts made from premium materials such as organic cotton or sustainable fabrics, and pay attention to details like stitching, fit, and overall construction. Additionally, consider shopping at stores that have a reputation for offering stylish and well-made clothing. **

You can find modern high-quality T-shirts at specialty clothing stores that focus on premium brands and designer labels. Online retailers like Nordstrom, Bloomingdale's, and Mr. Porter also offer a wide selection of modern and high-quality T-shirts from various luxury and contemporary brands. Additionally, you can explore independent fashion boutiques or directly shop from the websites of popular designer brands known for their quality T-shirts. **

Yes, shirts can typically be washed together with T-shirts as they are both made of similar materials and can withstand the same washing cycle. However, it is important to separate light-colored items from dark-colored items to prevent color bleeding. Additionally, it is recommended to check the care labels on the clothing items to ensure they can be washed together. **

Shirts and polo shirts have not become extinct, but their popularity may have decreased in certain fashion circles. This could be due to changing trends and preferences among consumers, as well as the rise of more casual and comfortable clothing options. Additionally, the impact of the COVID-19 pandemic may have also influenced the decline in demand for formal and semi-formal attire. However, shirts and polo shirts continue to be staple items in many people's wardrobes and are still widely available in the market. **

One can find simple, good, and affordable T-shirts at popular retail stores like H&M, Uniqlo, and Target. These stores offer a wide range of basic T-shirts in various colors and styles at budget-friendly prices. Additionally, online retailers such as Amazon and ASOS also have a selection of affordable T-shirts that are simple and of good quality. **