I think one of the toughest things about writing is simply feeling as if you’ve run out of ideas. Here’s a few things I do to keep ideas fresh — and to hang on to those good ideas when they come.
1. Keep a small notebook with you — something that will fit easily in your bag. This could be a PDA if you like using those instead. Any time inspiration hits, jot down your idea. Be sure to include enough detail that you’ll understand what you meant later!
2. Pick a person you know and feel strongly about (whether like or dislike). Now, imagine that person as the opposite sex. If you like to start a story with an interesting character and then build plot, this is a fun technique.
3. Mason jar technique: This one can be fun, and you can keep the jar on your desk for inspiration. Take small pieces of paper and write one or two words on each. I stick with nouns, verbs and adjectives. Be sure to include lots of variety and plenty of "strong" words. Put all the papers into the jar, shake them up, and choose three or four randomly. Build a story out of that. Remember you can always add to the jar from time to time.
4. Choose a photo from a magazine or an illustration and make up a story that explains what’s happening.
5. Go to a public place and observe people. Choose a couple and imagine what they’re talking about. Write their story.