在浏览器中保存临时数据

Question

I have a list of products, same products have different size, colors, quantity amount, price which varies independently on size, colour etc so, instead of posting something back to server on every value change such as size or colour, can't we store table on html which has all the variation for that particular product. I know we can use ajax post but its again posting something back to server. Is there some efficient way of storing data in stateless http or browser??