It seems to me that too many people don’t know when to use ‘to’ and when to use ‘too’. In Facebook posts, I constantly come across incorrect usage of both words and I find it quite irritating.
‘Too’ means, in addition; also; to an excessive extent, i.e. too sick to travel, whereas ‘to’, is used for expressing motion or direction toward a point, person, place, or thing, i.e.they came to the house.
One way to choose is to think, do I mean in addition; also or to an excessive extent? If so, an additional ‘o’ is required. Otherwise, ‘to’ will do.
I’m not aware of any rhymes to remember this but I’d be pleased to hear from anyone who is.