I don't drink very often so I am kind of a lightweight.
However, I was shocked to discover that in Columbia, SC, the liquor stores close at 7pm. Plus, they're not open on Sunday. I also tried to buy alcohol on Election Day to make red and blue drinks for watching the election results (bi-partisan beverages) and they were closed then too - all day.
I grew up in Louisiana and lived in Texas the last 8 years where they have drive-thru liquor barns. People here, in South Carolina, say you have to 'plan your drunks'.