Lists are awesome. I made one for all kinds of stuff and they come in handy all the time.

Got a list for:

• Games (local multiplayer, LAN, singleplayer)
• Movies
• Series
• Music
• Restaurants
• Gift ideas
• Addresses
• Recipes

And every time I encounter something interesting, I add it to the list.

Then when I need ideas, I can just look at the list and get tons of great ideas.