Please please please could a bright spark out there tell me how to remove this cover for washing before I throw the entire car seat across the room?!! I have spent the last hour on the internet and cannot find out how to do this anywhere. The instructions on the website are dreadful. I have managed to get it almost all off but the adjuster strap at the foot end prevents me from removing it completely. I cannot for the life of me figure it out and I thought I was a normal intelligent person! Any tips? Please save me from myself......