Let's throw some light our brilliant range of bulbs: we have LED bulbs and halogen bulbs, we have reflector bulbs and energy saver bulbs. We have bulbs that fit in lamps and bulbs that recess into the ceiling.
If you're in DIY mode, this might be the perfect time to pick up a torch or an extension lead, and perhaps even a ladder or some steps. And why not get yourself an energy monitor to cut your energy costs?