I like everyones ideas, I do not do circle time as yet because I have 2 15 month olds and a 2 1/2 year old, and like Playfelt says, mine at this age WOULD NOT stay for circle time at all.
I think the younger ones (2 and under) are best using their energy practicing their arge motor skills, dancing, running, crouching etc are far more relevant than counting skills etc. Just my opinion.
In a few weeks, I will be getting 2 four olds, so we will statrt something with my 2 1/2 yo and the 4 year olds, as they would benefit more from these circle time activities.
I sing (with a bit of help) the abc's, wheels on the bus, old macdonald etc about 10 times each a day it seems! My kids hear all kinds of songs, and we read counting books alot too. Even though the little ones are not old enough (and are not required) to sit still for songs and story time, I knlow that they hear it and are slowly grasping and memorizing songs, letters, numbers etc.