so oft these mistakes I make
when writing on my writing slate

(to) that's the one which directs...
like I'm off to Spain tomorrow
  
(two) is the pair of woolen socks that I wear...
when the weather is cold on the feet

(too) as in too many cooks spoil the broth...
one cook in the kitchen is quite enough

(there) states where an object or place is...
as in there is an orange on the sideboard

(their) is a collective noun...
the Tucker's said their garden was the smallest in town

(they're) denotes an abbreviation...
so they're no more trees on the field