Am I just being an old fart? But I really think it does matter. Personally I wouldn't use a designer if I spotted spelling mistakes on their literature or website. But when I look at many websites I spot spelling and grammatical errors - not just typos - that make my teeth curl. Stationary instead of stationery, their, there and they're, where and were. . . the list goes on. Perhaps I should just offer a proof-reading service!