This month I've challenged myself (and you) to try to cut my home heating bill with energy saving measures. This is perhaps the most important thing you can do to cut your carbon footprint, as 84% of typical domestic energy use (in Britain) goes for space heating and water heating.
I've already talked about loft insulation, but that's quite expensive (about £200-£500) and time-consuming. It's worth it, as it will only take couple of years before you've saved that much on your energy bills. But there are also simpler and cheaper things you can do to cut your home heating bills.
For example closing all your curtains at dusk will trap heat in your home. Remember to close the curtains in any room that has a radiator (such as bedrooms and spare rooms) at the same time. However you heat your house, closing the curtains after dark prevents heat from escaping through the windows.
For maximum benefit, make sure all your curtains are lined, preferably with thermal lining. Mine aren't, but as I get round to replacing them I'll make sure any new curtains I make or buy have thermal lining. Pelmets also help to stop heat escaping through the window (I really hate the look of pelmets though - ugh). And finally, make sure your curtains don't drape down over the radiators, as this would totally defeat the purpose - all the heat would be trapped behind the curtain and go straight out through the window. You might as well burn money. If any of your curtains fall over the radiators, go and chop them off with scissors straight away - it doesn't take long to sew up the hem with a sewing machine, or get some iron-on bonding to neaten up the cut edge.
If you promise to remember to close all your curtains after dark, you can click "I've done one thing on the list!" in the poll in the right-hand-sidebar. If you want to see the other items on the list, they're on the March Challenge blog post.