Many of the steps are cheap and easy to remove too, so are just as practical if you’re renting as if you’re a home owner.
1. Fit special weatherstripping tape to make windows less draughty. Weatherstripping (typically self-adhesive foam tape) helps to fill the gap between the frame and the moving part of the window. The same tape can be used on exterior doors. Bear in mind though, original sash windows are notoriously draughty, and you may prefer to get a pro to draught-proof and refurbish them more thoroughly.
2. Minimise draughts at the bottom of an exterior door with a brush-style strip – simply cut it to fit and screw it in place, but don’t fit it too low or it will drag on the floor. Exterior doors should also be fitted with keyhole and letterbox covers to stop cold air coming in.