You can't because the light is a toturial you can't buy any thing except for the food, and
when i mean food i don't mean sweets.

Its simple you really cant but if i figure it out i will post how to do it

I have a lite version and i buy medicine all the time. To get the medicine u go 2 the
store and it will be on the left hand bottom section. U click on the medicine u want 2 buy
and it will bring up a box that says the discription of the medicine and u click on the
green button 2 buy and the red 2 cancel the buying.

Hope this helps u. I'm addicted to this game.

Click on the food then press cancel then quickly press the stuff you want. It takes
several tries though.

You put your little friend on the sandbox and he/she will fix it then its locked so put he
or she on the welcome mat then he/she will have the key to the shed and then he/she will
open it its easy just try it addicted to this freakin game

Sometimes it says there is a box (any colour but white) open it and it will either be new
groceries or medicine.