Do you provide enough information for your buyers?

Here’s a lesson in what not to do from clickz.com:

When looking for shoes to buy her daughter, [she] measured the toddler’s foot and then looked for the site’s size chart. None existed. She wrote to the retailer asking them for a size chart, but was directed to go to a nearby store. “Not only did they not address my question, they directed me to the channel I tried to avoid shopping in the first place,” she said.

Simply amazing. “Just go to one of our competitors – they’ll be happy to help you!”