Bought 'old' food.
For most of the year, the grocery store I frequented offered 50% off almost expired food. Because of this, brown bananas were always on my list to buy. Some of them were closer to black and slimy, but I bought them anyway and stuck what I could in the freezer for breads and cookies. Besides the bananas, I would buy day old bread (which also freezes well) and wilty vegetables. Yummy.
Watered down my Almond/Soy Milk
Yup. I would bring my [also close to expiration] almond milk home and divide it. I would add water and no one was the wiser! Confession: this was so ingrained in me that I did it a few months into marriage :) My husband never noticed until I told him about it. Should have kept quiet....
Related: How Not to Go Broke From Buying Groceries
Used public bathrooms as often as possible
If you know me well, you know that I absolutely despise public washrooms. However, desperate times call for desperate measures. In order to save on toilet paper and soap, I would be sure to use the washroom before coming home, and as soon as I got someplace. And just in case you were wondering: No, I did not steal the toilet paper.
Walked to school
School was only 2km away from my house. In winter, I would wear so many clothes to stay warm that I more or less waddled to class. It was a good time, and walks are always a good idea. So is fresh-ish air. This saved on gas and parking (and by the way, keeping my tank above half also saved some money).
I had a basic phone plan
As in my smartphone had 1000 minutes of calling and texting. It was only "smart" when I was connected to wifi (which was free for me). This did become a problem when I started to drive to places I had never been or got lost in the city (I didn't have a GPS).
I didn't eat out
I can count on one hand the amount of times I ever ate out. I'm always asked about good restaurants in whatever area I've been in, and I never know. This greatly affected my social life, but I was okay with my [stale] bread and water. I did like to study every week in Starbucks, but I never paid for it. I usually ordered water, and I earned free gift cards through Swagbucks for drinks.
I wore clothing till hole-ridden
I have finally gotten rid of all of my hole-ridden clothing. The shoes were the worst. My husband and mother were appalled, but they also know me and laughed. I don't know that I did this to save money, because I had no money to buy anything, but I guess it counts.
I didn't shower every day
Gasp! I also only washed my hair twice a week. Thankfully I have dry hair so that was possible (and preferred, really). I heard it wasn't healthy to shower every day anyway. Do I believe that? Maybe.
I picked up coins in the laundromat
This one is most embarrassing but I decided to share anyway. There is a lot of money behind washing machines! I discovered this one day when I went to get coins. The change-making machine was placed on the wall above a washing machine. After inserting my bill and collecting my coins, I dropped a twoonie (a two dollar coin for those unfamiliar with Canadian currency) on the floor. It rolled behind the washing machine, and since I obviously needed those two dollars for a wash cycle, I heaved the machine out of the way. When I did, I found several quarters and loonies (one dollar coins) that the less desperate had abandoned. To make a long story short, that became my thing. Every time I needed some coins, I checked under the machines. I made at least ten dollars doing that. The worst part? It wasn't even the laundromat I did my laundry in!
Declined cleaning service when i moved in and out of my apartment
My landlords had arranged a cleaning service to take care of my apartment before and after I moved in. The only problem with that was that they were going to charge me $300 to cover it. I called them and told them that I loved cleaning and wouldn't require that service. They accepted that, and even waived the fee for my move-in clean, because they didn't want me to move in to a dirty apartment! Thanks to the help of my husband (then fiancé), it was even cleaner when I moved out.