Checkbox Form Object - Use the checkbox form field only if you are wanting to add interactivity to your checklist. The checkbox form field, found in the Forms toolbar, can link to a cell in the spreadsheet without requiring any Visual Basic programming. The linked cell will be a boolean value TRUE or FALSE. Like the drawing objects, working with a large number of checkboxes can get messy.
Focusing on acquiring new members is a key part of creating and maintaining a successful membership site. But perhaps even more important is keeping existing members happy. For starters, it’s probably easier to keep a member than find a new one. Then there’s the invaluable word-of-mouth marketing happy members contribute, not to mention the damage to your reputation unhappy members can do.

A Web analytics program tells you how shoppers are using your site. It reveals where users come from, what pages they visit and what keyword searches brought them to the site. An analytics package enables merchants to calculate their conversion rate. (Your “conversion rate” is the percentage of your visitors who make a purchase — a critical fact to know and track over time.)
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.