Hi Rich,
You should always have a stock of dextrose or lucozade tablets handy. I always keep a packet in the car, a couple in the house and one in my coat pocket when I am out. In the house you need something that will raise your BS quickly, so a good alternative is breakfast orange, followed by a bit of carb for something longer lasting to keep the BS above hypo levels until the next meal. A couple of digestive biscuits will do this - or a small slice of that birthday cake!