In the interests of not reinventing the wheel, to save money/time (and in a spin off to another thread) I want to pick your brains! Especially those further along the path than me!

What resources, books, toys or games (not so much curriculum) did you find that your child returned to again and again. They can be commercial or homemade, intended as learning materials or 're-purposed'. Please include a rough age guide for when they got into it and dropped it too, if you can.

For us so far it has been:

* Duplo - from very young, still hasn't outgrown it at 4 but would probably be into lego if his little brother wouldn't eat it.

* Paint - from about 1 year. Messy but brilliant

* The sandpit/box - From 6 months, still loving it at 4. I have an idea from a book for an engineers wall to add to it that will probably buy it quite a bit of time.

Anyone else?