I have actually used more cheques this year than in the last three years put together, I've just started my third cheque book in 2009.
I will miss the option of paying by cheque, I can still do this is some places (but this is getting smaller as each month passes).
The cheque guarantee card will be withdrawn in 2011.
I will however not miss the huge delay in paying a cheque in and the bank clearing the cheque into my account. I recently read something on a major bank's website, about how long it takes for cheques to clear:
If a cheque was paid in on Wednesday 2nd of December 2009, it would earn Interest from Friday the 4th, I would be able to draw funds out on Tuesday the 8th, but the cheque would not actually clear fully until Friday 11th of December 2009 - meaning that I could have spent all of the money when the bank decide to bounce it.
Electronic transfer's can now be done in less than 2 hours, this is the future, sadly cheques cannot compete with the super fast reality.