Hi there! Thanks for your question.
So it is important to keep all your receipts, so you are able to accurately report numbers onto your tax return. Your receipts do not actually attach to your tax return. You will summarize similar receipts into categories that go no your return. There are several handy apps out there to store your receipts. I use the QuickBooks app on my phone. You can take a picture of the receipt and it sticks with you in your QuckBooks account. There are several other options out there jut Google receipt apps.
Thanks again!