A pay-per-click campaign It gets expensive to buy sponsored links from the Google’s Adwords or Yahoo’sSearch Marketing services. But your competitors are undoubtedly doing it. So if you’re not, it’s unlikely you’ll be competitive (unless you have a very compelling product or price). As online competition has increased, a PPC campaign has become essential.
Special Unicode Characters in Data Validation Lists: ☐, ☑, ✓, ✔ - This may be my favorite approach. You can include special characters like this in a Data Validation drop-down list. This isn't quite as good as clicking once to fill in a checkbox, but it is great for the mobile Excel apps. The only hard part is remembering how to insert a check mark symbol in Excel. For more information, see my article Using Unicode Character Symbols in Excel.
This checklist bundle is a perfect addition to (or the beginnings of) your standard operating procedures manual. Whether you're a company of one and you simply want to make your own life easier, you have a team of contractors you delegate to, or you ARE a contractor looking to add value for your clients, standard operating procedures are a must-have tool. 
Excessive dependence of checklists may hinder performance when dealing with a time-critical situation, for example a medical emergency or an in-flight emergency. Checklists should not be used as a replacement for common sense. Intensive training including rote-learning of checklists can help integrate use of checklists with more adaptive and flexible problem solving techniques.[citation needed]
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