Have you ever waited forever to buy a pack of gum at a busy drugstore? Have you ever been left to languish in a dressing room by a salesperson that seems to be on a break somewhere? If so, you already know that sales and customer service are integral parts of marketing and customer satisfaction. For the first 3 days of this week, keep a journal of your personal sales and customer service experiences with local and online merchants. Keep track of all the details; no item is too small to track. On Wednesday read through your journal and relay the most noteworthy even to us ( positive or negative ).