As smart phone cameras and software have improved, so has the utility of using your phone as a document scanner. A recent post on the excellent How-To Geek blog details the best way to scan documents using Android and iOS devices.
On Android, use Google's own Google Drive app. Open the app and tap the “+”, then tap "Scan." Google Drive will automatically crop and clean up the scan for you. If you want to take the cleanup a bit farther, you can then do more cropping, adjust color depth, etc. Because Google Drive saves your scans in PDF format, you can scan multiple pages into a single document. You can then access the document from any of your devices with an Internet connection simply by logging into your Google Drive account (which of course is free).
On iOS (iPhone and iPad), use Evernote's Scannable app. As stated by How-To Geek, "When you open the app, simply hold your device over your document against a contrasting background. The document, piece of text, business card, receipt, or whatever you’re scanning will turn blue and a white progress indicator will appear in the center. When it forms a complete circle, your document is scanned." Once scanned, you can insert your document a text message, email it, or share it via the calendar to any event participants during or after the meeting. This might be useful for depositions.