Strawberry (& Tomato) Fields Forever?

I have a confession to make. I have just purchased some strawberry and tomato plants from the garden centre. I have not grown these from seed. I am a bad, naughty urban gardener!OK, so maybe I'm being a little hard on myself. Work constraints have meant that I haven't got my act together and planted any tomatoes from seed so far this year, so I have made the decision to buy a couple of plants