I don't get to see my three year old twin grandsons very often due to distance so when I knew they were coming this week,albeit just for a day,I went a bit overboard buying things to entertain them.That included a beautiful paddling pool with lots of water toys.They played in that for five minutes then discovered a -brand new paintbrush-in my kitchen.They then proceeded to spend the rest of the day happily transporting water in their new buckets to the garden wall on which they painted water pictures.I did provide another paintbrush and,in case anyone wonders,the wall was in the shade,they were covered in sunscreen and long sleeved but cool t shirts and had loads of drinks.I made them a picnic so they could continue their masterpieces and they had to be dragged away later.I could have saved myself a fortune!