I don't really like the idea of having things loose on the back seat with baby for safety but i suppose thats what a lot of people do?
Dog Guard or Cargo net. I have the same concerns as you and this solves it.
If you value your back, consider a taller car like a Tiguan (sh!t packaging - small boot). or better still a Touran. Lifting kids in and out of a small low car is OK but not ideal.
The Touran is a boring a hell car, but it is a great tool for the job. You can even get a PD170 DSG.
Be warned though, I have two kids, and on a UK holiday the boot is still not really big enough, even with the dog guard which allows the parafanallia to be loaded right up too the roof.
My Touran has gone now, but it's replacement may need a roof box too!
