Here is an info sheet about my house, which I have put together for Open House events. And here is a simple self-guide floorplan of the features of my house, to print and bring along to open days - we get quite busy sometimes so this will help you!
Here is a beginner's guide to buying LED lightbulbs - it's now pretty out of date but gives you the idea. Old-style halogen and other bulbs are no longer sold; LED bulbs - using a fraction of the electricity, and now a similar price to the old ones - are now the norm. And forget that cold blue colour: LED now comes in a range of light-colours, including lovely warm ones. LED will immediately start saving you a lot of money and will carry on saving you a lot of money every year. You've probably been spending £10-15/ year in electricity running a single old-style (halogen) bulb for a few hours a day, and the bulb needed replacing every couple of years. An LED equivalent costs only £1/year to run, and the bulb can last for 20 years.