Startup Idea: Multiple Item Copy-Paste System

Startup idea to create a software solution that enhances the standard copy-paste functionality by allowing users to store and retrieve up to 10 different copied items. Items could be called up using custom shortcuts (like Control+C1) and managed at the user's discretion.

I work from home on my computer. I frequently copy and paste numbers. Often I will need to use the same numbers over and over, but not necessarily in a row. I would like for there to be a way to enter up to 10 things on the copy and paste option that remain, not just the last one used. Instead of control C you could assign a letter or number to the items that you want to remain in the copy line up. So, every time I want to enter my employee id, I could use control C1 for instance. That would remain constant until I purposely deleted or reset that option.