Here's a great list of sensible, easy-to-implement tips from the Personal Tech section of the New York Times. I'll add #11—check this blog, right here, from time to time for helpful tips for teachers in our district.
10 Ways to Get the Most Out of Technology, by Sam Grobart
Also, if you're not using the Times in your teaching yet, be sure to check out the lesson plans they offer by subscribing to your area of interest. When you set up an account at nytimes.com, all the way at the bottom are curriculum choices you can select to subscribe to…and receive on your phone as well if you want.