Need help with Dress sizes

I am new to ZEN and I am building a an ecommerce website: http://cinderaillascloset.com/
and i need help with including DRESS SIZES to every dress / product uploaded.

I also want to do it in such a way that buyers can search by dress size in the same way they can now search by manufacturer.

When i upload new products there is an option for Products Manufacturer, how do i include one for dress size?

Also how do i add an optional "insurance fee" and "dry clean" on every order. I say optional because the customer will have to select if they desire these two services with their order

Desperate, please help

When i upload new products there is an option for Products Manufacturer, how do i include one for dress size?
Product General has what you currently see - to add normally one creates a "New Product Type" you can search the tutorials and wiki for how and you can base
You can also create a test product using one of the other product types available to see the difference in what can be entered
Also how do i add an optional "insurance fee" and "dry clean" on every order. I say optional because the customer will have to select if they desire these two services with their order
Do this with attributes
https://www.zen-cart.com/tutorials/index.php?article=57