So today I found and bought the coolest looking foldaway reuseable shopping bag. I think they look supper cool and trendy and therefore are more encouraging to use.
The cheapest I found them online was at Quirky Bags which also happens to be a very cool online shop with some great products. So I bought myself the one below and will see how it goes before buying more from them.

They also have a very cool concept of bag liners which you would use to hold all the stuff your normally have in a handbag which then fits inside your handbag. When you want to change handbags then you just take the liner bag and put it in a new one. No transfering of endless little bits and pieces and invariablely forgetting something! Will be pondering that ...but have to sort out my handbags first.
Now I wait for it to be delivered, then can make a habit out of not getting more plastic bags ! YAY