One of my favorite tips I've gotten from these boards is to get 2 empty M&M plastic tubes. One you fill before you leave with quarters & nice new pennies. The other you bring to put all your pressed pennies in until you can later put them into the books!!
We have been pulling U.S. pennies and quarters out of our change from stores for the last 3 months.
I have more pennies then I want to count and over $10 in quarters!
I suggest using a medicine bottle - that way it has a lid - it's small and can hold quarters AND pennies stacked together in the exact amounts that you need (quarters to operate the machine - and the penny to be pressed!)