Hi Corndolly,
Hi i'm doing the same thing at the moment, haven't got a garden so its containers for me too! Another way to make containers if your on a budget like me is too cut the tops off ordinary plastic milk bottles and use the bottoms for growing salad leaves in them. Mine are working so far.
Last year i grew salad leaves, basil, coriander, carrots and spinach in pots. It all worked out but they do take lot of watering especially in hot weather.
This year i'm doing the same things as last year but this time i'm also growing cucumbers, chillies, leeks, potatoes, tomatoes, beetroot among others.
My cucumbers and tomatoes are just in cheap plastic pots at the moment and seem to be doing well outside. You can buy 15 terracotta pots for £1 out of the pound shop. Would only do one cucumber and one tomato per pot as they require quite a bot of space for roots to grow. THe pots are about 10cms down i think maybe more and twenty cm across if thats any help.
My local pound shop and Wilkinson's are my new home currently, as they have some good offers on at the moment.
Big square and round containers which i am currently using for both carrots and parsnips in. All sprouting and growing so far (fingers crossed).
Large fleeces and poly tunnels both for a quid.
Try and get quite long and deep containers for the carrots to stop slugs from getting at them.
Ordinary dustbin, drill some holes in the bottom as there a perfect container for growing potatoes, my first trying this but been told it works. Only time will tell.
Hanging baskets:
Currently have three filled with cherry tomatoes and one with strawberry seeds in.
Two square containers filled with various beans and peas.
Another two with broccoli in. One long rectangle one with onion.
Grow bag with lettuces in them .
Only problems so far is drainage and the constant watering. Be sure to separate the tomato feed from ordinary water for the courgettes. I'll let you know how mine are getting one as i'm a total novice too.