checkout, coupon behiviour

Hi,

I have checkout steps set like this: login, adress, shipping, payment, cart, end
I have 2 manual shipping methods. First cost 1.49eur if orders is 19.99eur or less, second is free shipping if orders is more when 20 eur. Everything loads fine except when using coupon code.

Lets say I add product for 15eur, in the cart view I have coupon view. Entering discount for -30% will give discount. All Ok.
But if user decides to add 1 more product for 5eur or more and going again through all steps in shipping method selection there is same shipping method for 1.49eur and no free shipping. Without coupon all works fine. It seems coupon stays in user session and gives troubles for auto load shipping method restriction...
Anyway to fix it? I tried to change checkout workflow but it made no difference.

Thanks

Hi,

I cant get it....So if I disable "include virtual products prices" on both payment methods, free shipping doesn't work...Adding anything above 20eur It will show shipping method with cost of 1.49eur and shipping method with free shipping wont show up. So how this can be configured?
Its like I should choose one of two possibilities. Use coupon as it should and no free shipping. Or have free shipping but with wrong checkout coupon behaviour....

Thanks

Ah. I see now.
Is there a way to add weight to all products with mass action and maybe have 1 same weight by defaultvwhen creating product? So i wont need to enter it.

Thanks