I can't be the only person who keeps notes with partial ideas for potential future use (hardcopy or electronic).
Most of mine are:
adding character to NPCs (like my note that one NPC should "call all computer viruses 'bacteria' instead.")
ideas for introducing players new to Shadowrun to the world (Have the group meet a Johnson at a bar who needs an "ork problem" taken care of. Instead of needing to kill the ork like the trope would suggest, the ork "was like that when I found him.")
runs based on TV or movies (Worker got drunk, and called their boss. Luckily, they called the boss' voicemail. The PCs must distract the boss while the decker find and deletes the information.).
What do you have?