What consumers want

This is a tricky question to answer because the answer varies from person to person but in general each consumer wants a particular product but they expect getting the product to be as painless as possible. A consumer wants a person to help them that is kind and truthful as well as a fair price for the product. Consumers have trended toward wanting items that are less monetarily as well as fast to obtain. The item or service may not always be the same but how they obtain the good is what the consumer expects.

The customer is not always right

Some instances the sales person is more knowledgeable than the customer especially on subjects that are not common knowledge to everyone such as how electronics work. A customer may what to hook up their computer to two different monitors for example and show one big picture across the two monitors. The customer may see a cable that looks like it may work but it actually just feeds the same picture to both monitors and they might want it because it is cheaper but that is where a sales person's knowledge comes in to make sure they will get the correct product for them so that they are satisfied customers. Other situations is when a cheaper product is of inferior quality and will not do the job that the customer wants due to this inferior quality. This is why the customer is not always right

Keeping track of ideas. 
There are many ways of keeping track of ideas that come to you, business related or not. I have found that I personally try to keep it in my head by rethinking the idea over and over. When that route is not good enough I try to jot down a note in the notes app on my cell phone since it is always on me. There are other methods such as notebooks and other devices a lot of it is just having your method of remembering readily accessible.

Urban Living Needs

There are many stores and services that could provide services to consumers that are on a short walk or bike ride to their job. Cafes and drink shops would be a great shop to have in the middle of a high traffic area to attract customers that can stop real quick on their way to work. If bike usage becomes prevalent in a given area then a need for bicycle racks that customers can lock with their own lock for ease of use. This need would be satisfying for the bike riders and make their commute easier. It is even possible to make profit off of this such as charging say a dollar a day to be paid to use the parking. There is even a market for bicycle rentals for those who do not own a bicycle. These businesses have caught on such as On Bike Share (http://www.onbikeshare.com/bikerental/commercialbikerental.php)

These are just a few business that can pop up due to urban living and short commutes.