I'm old fashioned...I do it all on paper. I prefer doing it this way.

I keep all my receipts sorted into envelopes according to specific categories and about every 2-3 months, I tally them up. I keep all my household bills in envelopes as well and add these up at the end of the year.

Each parent has a payment sheet. It has the payment dates for the year and I write beside it the amount they pay, cash or cheque and we both initial it. At the end of the year I tally up their payments and give them a year end receipt and than with my copies, I add them up for my total income.

I have the km's to each store I go to and than I just put tally marks beside each trip I take and add up at the end of year. I write down any misc trips I took as well. My accountant said that if I wanted, I could just keep track of my normal trips for one month and then times by 12 and just add in the misc trips. I think I might do that this year since every weekend it's the same trips anyways and I will just keep track of the longer trips out of the city and the field trips I do in town.