Realize a couple of key facts: A) the prices for e-commerce software have fallen, so you don’t need to spend a fortune unless your needs are complicated, and B) many of today’s e-commerce packages include a full range of tools in one package, from an inventory management system to marketing tools. Many of today’s merchants prefer this “all-in-one” approach because it makes life simpler.
A checklist is a type of job aid used to reduce failure by compensating for potential limits of human memory and attention. It helps to ensure consistency and completeness in carrying out a task. A basic example is the "to do list". A more advanced checklist would be a schedule, which lays out tasks to be done according to time of day or other factors. A primary task in checklist is documentation of the task and auditing against the documentation.