It already is cash. Just use it as it is. Stores go out to buy change They will appreciate it.
there are machines in different places that will convert your coins into paper money
my local CVS pharmacy has one near their front door, very convenient and doesn't take the time a bank would be required to count every coin(the machine does the work)
Buy what
sicarus is right, dont be embarrassed just make sure you counted right or walk into your bank and deposit it then withdraw it as notes.
don't be embarrassed
So you're embarrassed by giving people coins instead of notes? Why? Most stores love having change. They actually need it. I used to be like that. But when I had £50 in coins in my bedroom because i kept buying stuff with notes i felt it had to stop. Don't break into a note until your coins are gone