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You can do it manually, filling in the tax declaration/return. All banks, employers, insurance companies et cetera have already given all information to the IRS, so it is basically just checking if it looks okey, write travel cost to-from work, if you have it and send it.
Receipts for expenses are more a thing for companies (or if you sell a home and want to pay less profit tax)
And all this you can do digitally if you choose to.