Sewing, dress making and altering
How? If you've been making or altering clothes for family and friends for a while, offer your services to the public through adverts in the local press and leaflets in local fabric shops. If you're good, a lot of work will come your way through word of mouth. If you'd like regular work, contact a local dry cleaners which offers alterations as well.
How much can I earn? Prices for this kind of service will vary depending on where you're based, so ask around - possibly in fabric shops and dry cleaners - to find out the going rate. Averages are about £5-£10 per hour with a minimum charge of £5.