Well I was filling up at Morrisions and remembered that their oil is cheap. So I pick up a can of Texaco syth for £14.99. Cheaper than I can get it at Halfords with my trade card.
I've also been to B&Q and picked up a whole load of self watering botical plant pots. There good for me as I tend to forget to water my plants. And if you over water there's no drainage holes so it doesn't make a mess.
5 of them are for my work plants so erm I'm going to make a soily mess I guess on my desk.