I don't think you are doing the wrong thing

However, every centre that I've sent my kids to, usually require 2 days minimum, so its not as long for the kids to be away from the centre - I usually do a mon/wed or wed/fri type thing.

I've found once the kids get to 2.5 - 3, they really need the extra stimulation that I can't provide, I'm not a child care worker, I'm not a teacher, I'm just me! So I have no ideas of what to do with them for the most part.

So I think its a great idea Its always nice to have some alone time too