Paste is a smart cloud clipboard history and snippets manager for Mac. It keeps everything you've ever copied and lets you use your clipboard history whenever you need it from all your Macs.
Really relieves the headache of going back and forth between tabs and windows copying and pasting one thing at a time. Copy images, plain text, links, etc. You can even tell it what kinds of things you don't want copied (e.g., passwords, etc.).
Pros:Great for storing things you only need for a short while and things you'll need longterm.
Cons:I haven't found a better alternative.