I want one with reusable bags which I could do a little decorating but also making meringyes and icing cakes. I notice some sets just have disposable bags and many just have little tips just good for making flowers. So I want to start with a basic set that comes with awide tube and perhaps a little one for writing tgat I could build upon and some reusable bags. Disposable bags are pointless as I can just get a ziplock bag. I know some reviwers of some kits said they didnt like the bags andjust bought the set for the pieces and used with ziplock bags I dont want that. Or should I just get the reusable bags and a small set od tips?could all bags fit all tips?