#2  
I have 1-5 employees that I need to have access and share data and printers locally.   We use a database that is specific to our industry and all users must be able to access and use the database. There is no traveling involved in my business so there is no need for remote access.  However, there is a need for Internet access.  I don't want to install cables because future plans include moving to a different location.
 

The solution to this problem is to setup a server based local wireless network using a Wireless Access Point (WAP) and a Wireless Router.  The WAP could be eliminated and client computers can connect directly to the Wireless Router if you can get your local Internet service provider to provide you with multiple IP addreses.  This usually involves a higher cost.  Hence it is best to use the WAP to provide as many access as needed without the additional cost.

The server can have enough storage capacity to hold your data. 

Printers on the network can also be shared with all users.

This is an illustration of the solution: