as you already know i do like to get something for nothing.
One way i do this is Swagbucks, i always keep the tab open and when im on the computer i click onto it,I hardly ever do the surveys on this site i mainly click through the tv bits, do the daily polls and NOSO thing. I get on average a £5 Amazon voucher every 3 to 4 weeks .This pays for the ink for my printer.You can earn more but it just depends how much time you have.
Heres a link to Swagbucks, its just a general link to the website not a referal link.
I will be back later with another money saving idea.