Copy and Paste Multiple Things? OSX I would like to be able to copy and paste multiple items on a Mac using keys like ⌘1 would copy 1 and ⌘2 would copy 2, ect. Then ⌘! would paste 1 and ⌘@ would paste 2. If there is already a program for this please let me know or if you can make me one. Also I need it to be a free program. Thanks in advance.
I really like Flycut. Available here: https://github.com/TermiT/Flycut

Like all of the other answers here, it's a clipboard manager which stores every item you copy using ⌘+c in a list. Then you can press ⌘+shift+v to see a list of the items you have copied and choose one to paste. 

Unlike the other answers here, it's free, open source, and doesn't come with a load of other functionality. Also it is actively maintained unlike clipmenu (last release ClipMenu 1.0.0a1 released  Nov 11, 2014).