Anybody successfully add more storage to their Equinox. Recently purchased a used 2012 Equinox LT. I didn't realize it before purchase, but damn, there is no storage. I keep booster cables, snow brushes, umbrellas and such in my vehicles. Have them in the back cargo area and they do nothing but roll around. I traded in a small 2007 HHR which had twice as much storage. Any solutions?