My tools for ideas

To capture:

Screenshots
Pictures of things I see
Pamphlets / posters/ magazines and then digitalization
Send emails to me
Save ideas in notes
Blog drafts
Pocket articles
Lot of note papers and then digitalization
White boards from dollar store
Sticky notes
Word / text files
Paint doodles

To organize :
Mind maps
Concept maps
Prototypes  of ui
Excel sheet
Word / text files
Google docs