It turns out that in the Age of Sharing, a picture is worth a thousand data points--but you can strip out some or all of those identifying bits before posting or otherwise sharing your pics online. Maybe you don't want strangers to know the GPS coordinates of your home pics, or maybe you'd rather the boss not know that you used that sick day to prepare for (or recover from) a big pub crawl. In any case, it's almost absurdly easy to remove that info using Windows Explorer. Here's how:

Gather the pics you want to protect in one folder. This isn't strictly necessary, but it does make your life much easier.

Select them all, then right-click and select "Properties."

Select the "Details" tab, then click on "Remove Properties and Personal Information."

If you want to remove all possible info, just click "OK" to create a set of copies identical in every way except for the identifying information.

If you'd rather choose which info to keep and which to delete, select "Remove the following properties from this file" at the top and then scroll down the list to select the info you want to remove, then click "OK." This does not create a copy, so preserve the information externally if you think you'll want it later!

If you like, you can also work with individual files to remove different data points from each one. There's little reason to keep this info on shared files unless you're a pro or are collaborating on a joint photo project, so it's a good idea to strip that info before you share. While you're at it, check out this video on disabling mobile geotagging to save you some time in the future.