One aspect of frugality (especially if you've got a few a hours a week to spare) is the make the most of loyalty and rewards programs - but making absolutely sure that you don't buy something you wouldn't otherwise just for the points
I'm a member of the following reward programs
- Aeroplan. I'm a semi-frequent flyer for work, and I end up buying Esso gas cards with my points.
- Asiamiles. I only fly an Asiamiles airline once a year, so these build up slowly.
- Sobeys. My regular supermarket for fruit and vegetables (I could travel further for somewhere cheaper, but the gas costs would outweigh the benefits)