Scottish wool, not Scottish Gas. It's the new black.
IKEA bumper packs of candles - saves electricity and smell nice, too.
Spend nights out learning a new, fun skill in an evening class rather than a wine bar - sewing, quilting, crocheting and knitting. Learning skills forms a new way to turn a few coppers or make lovely gifts, too.
Bored a Saturday afternoon or morning? Head for boot sales, charity shops, estate sales and auctions rather than the mall.
Drop the gym, a pair of hiking boots or MBTs are cheaper, especially on Ebay (broken in, too). Saves on petrol as well.
Vegetarianism isn't just for weirdos, and has added green points as well.
Instead of perfumes, try essential oils - mix your own. Lasts longer, too.
Drink at home - no worries about thugs in taxi ranks or going over the limit.