Jim Beam - nice bourbon and currently cheaper than Jack Daniels, so should satisfy any cravings while everyone about you is drinking Pimms. Bought from Stoke Sainsbury's where, strangely enough, black label Jim Beam is currently cheaper than regular.
Could not find black label online, so I think it's instore only. However, regular is available through both. My first deal thingy, so please edit if I have massacred it or the link doesn't work.
Both are 70cl bottles. Black label is 86 proof and smoother (thanks cheaporob).