I cut the corn off the cob (from the other night) and froze it for use at a later date.
I save rain water in pails to water my plants with, I also use the water from the dehumidifier for watering.
I pour boiling water from cooking on weeks in the cracks of the sidewalk to kill them. If it's cold I'll water plants with them.
I pack a sandwich on days that I work and eat in my car while running errands.
I only read free ebooks on my ereader. http://nookdeals.blogspot.com/ Free and cheap books for ereaders are posted here often.
When a tube of hand cream appears to be empty I cut it in half and eke out lots more to use. I learned that from a waitress that I worked with in my much younger days.
I make my own postcards to send to my grandchildren and often use a photo of the child on it.
those are some of the things I do so save money, what are your ideas?