Spreadsheet / app / program for a sole trader to do accounts?

[JenniMoo]

I'm just about to start some freelance work and wondered what the best way to record the income and outgoings is? I don't think it'll be worth involving an accountant as I won't be earning enough to pay any tax, anyway.
There'll be just a couple of customers I'll invoice and its training so the costs of fuel / car wear and tear and other materials.
Any thoughts? I'm tempted to do a simple spreadsheet but wondered if there's a template I could use.

I would advise a paper based system if you don't have much to record. Then transfer to a basic spreadsheet at the end of year. Keep copies of your invoices in a file and then fill a section with scrap paper. Every time you get a receipt just staple it in. I run a fairly big business this way.

I just use Excel. I have a number of sheets I use:
Hours (to log hours spent on each client)
Expenses (to log expenses chargeable to clients)
Mileage (to record business mileage, regardless of whether its chargeable or not)
Accounts (to record invoices paid, and ALL expenses even if not directly chargeable to a client)

Thank you. Im not good with paper, so I think a spreadsheet will be the way to go. Ill set up a simple on with income and expenditures and see how I go.