Just that really.
I've bought all the stocking bits for DS and decided on Lego duplo for his main present but I'm not sure what to get.
Do I need to get a baseplate?
Should I get a tub? Or a set by itself? Or both? I like the zoo/fire station/construction sites and the number train. I would get the cars but I have an awful suspicion that his grandparents are buying him more v tech toot toot cars.
Is it worth it? Is amazon the best place to buy?
So many questions. TIA 
Dp is useless as he thinks the Lord of the rings ship and star wars jabbas palace are appropriate for a 2 year old.