| Always carry a pack with me. Then again I'm a T1 so I guess I have a greater scope than you for having a hypo.
When I was first dxed at 14 I'd have a hypo at anything below 5 and would only need one glucose tab to bring me back to normal. Now it's usually 3-4, although I also use glucose tabs as an absolute last resort. If I can get a regular soft drink or some other form of sugar from somewhere I'll go with that first - the glucose tabs are 'survival food' and I like to save them for when there's absolutely nothing else around. That way they last longer and I feel more secure.
I also keep a pack in the car and a 2 litre bottle of Lucozade under my bed for nighttime hypos. | 
