One of the biggest frustrations instore shoppers face is not being able to find products they're looking for whether they are sold out, hard to find or simply not practical to keep in stock. While these missed opportunities may seem inconsequential, they are starting to add up in this competitive retail environment where every sale counts.There is hope. Many retailers are now taking steps to directly address the frustration of a wasted trip by combining the convenience of online shopping with the delight of the in-store experience.