One of the best ways to work smart is to subscribe
to an royalty-free image library.
These give you unlimited free access
to huge collections of photos, and sometimes clip art and icons etc.
The best ones have really smart tools
to help you search, like searching for photos that feature a certain
key colour, or ones with similar keywords to another photo.
Normally you can sign up for a week,
a month or a year. It gets cheaper the longer you sign up for.