Give dad a break from washing the car and send it through the machines at your local BP. The tickets are valid for 7 days, so if you have one close by, you can pick up a ticket on Saturday, add it to your gift card on Sunday, and dad still has that and five more days to get the car washed while sitting back.
So, click on the link above, and pop your post code in the search box. It'll come up with a list of participating garages in your area - apparently there are 165 to choose from around England, although most are in the south.
On the right you'll see a list of offers at you BP. Mine comes up with a 50p carwash, 50p coffee and 10p chewing gum offers. It also lists a range of ways to take 5p off per litre of fuel - spend £10 in store, buy screenwash or buy Lindor chocolates.
To redeem any of these vouchers, you need to sign in, select your voucher and print it.
Alternatively, download the app onto your smartphone and go through pretty much the same procedure - although at first my phone told me there weren't any BP stores near me, though I know there are three.
So, give dad a break from washing the car, and grab a coffee while you're at it.
Thanks to Chanchi32 at HUKD