Finance blogger Nickel tracks receipts and other scraps of tax-related paperwork throughout the year in two places: a basket at home, and an envelope in the car. Any time a business or medical expense comes up, in the basket or envelope the receipt goes. Same goes for charitable contributions. Every once in a while, Nickel transfers the contents of the envelope on-the-go to the basket. (Once that's done, you can easily digitise that paperwork with the right scanner.) How do you capture receipts and other tax documents as you go? Let us know in the comments.