netmeg - 10:24 pm on Oct 2, 2013 (gmt 0)
I'm having my clients combine products where possible, even if we have to redo the SKUs. In other cases where that isn't possible, we only let one or two pages into Google and Bing, and mention the fact that we have other colors or sizes on that page.
But overall, I would say it depends on the percentage of your products that are situated like that. If it's only five percent of your total products, you're probably okay. If it's 25 percent or more, you're going to have to come up with something.