Small business can be forgiven. When you start a business you want to get it right and there isn't always the time to understand why you do all things you do. You need a website. Why? Because you do. And a twitter account and a Facebook page. And you need an office and a store with a shop window display and an accountant and letter-headed paper and business cards. Still don't quite know why but better safe than sorry.
Big business should know better but despite having years of experience, industry expertise, resource and time to deliberate on what really makes sense for their business, many continue pointless practices and, in many cases, they don't even know why they do them.
These are my top 4 pointless business practices