I invested in a little piggy bank called a 'Pot of Dreams' where it states if you fill it up to the top with £2 coins then you'll have £1000! You also have to smash the piggy bank in order to get the money out - so no stealing from your own fund! I have however adapted the £2 scheme slightly in order to save more. I still put £2 coins in whenever I get them but I have also started to put notes in as well. I sometimes babysit so the money I get for that will often end up in there too.
I found that I don't generally realise that I am saving money because its only £2 here and there. But every little helps and every little adds up. I am also really excited when the time comes to smash it so I can see how much I have saved!