Do you think there could be a place for an 'older brother' type of childminder/babysitter? I know when my children were little they really needed to run off some steam and would have welcomed someone who could play football and other energetic games with them (or even computer games/lego when wet outside) when I didnt want to was too tired.
I have a 20 yr old who has just finished Uni and is really good with kids - Im guessing he could get himself CRB checked easily enough.
Would it be worth looking at, or would it be a waste of time and money do you think?