I keep it simple. Just use the voice memo on my iphone. Captures the idea in seconds and I can email it to myself from the app. Sound is absolutely good enough for just getting it on record to reference later. I save them in a folder in my email and then I know where to easily find them. A little keywording to help me search and it's a simple, digital library.
**WTB: A Designs REDDI**
-PM me to work out a deal-