XpertHR recently issued a press release outlining many of the changes to the employer/employee relationship that will go into effect in January, 2018 https://www.prnewswire.com/news-releases/new-laws-will-affect-employees-in-2018-leave-equal-pay-reasonable-accommodations-and-more-300534650.html.
Chief among those changes in Colorado is an increase in the minimum wage to $10.20 and $7.18 for employees who regularly receive tips. (In 2006, Colorado voters adopted an amendment to the state constitution that raised the minimum wage and required future increases be adjusted each year for inflation. The Colorado Department of Labor sets the state's minimum wage each January.) Another 2018 change for employers across the nation is an increase to the minimum hourly rate for federal contractors to $10.35.
If you don't have an employee handbook, or are considering a significant re-fresh, an excellent article from the National Federation of Independent Businesses
published last summer provides guidance on How to Write a Great Employee Handbook http://www.nfib.com/content/resources/labor/how-to-write-a-great-employee-handbook/