Welcome, and great start! I would say that's already more than a baby step. It has been mentioned a couple of times already, but yes, now you will start to see savings opportunities everywhere, and it is fun!
Thumbs up on all the changes and ideas. I have to admit I used to be kind of judgmental when it came to electric bikes ("use your own darn power!") but now I see the awesome value for people like you with health problems and older people who would be stuck driving -- or just plain stuck -- otherwise. Go for it! For the winter lunches, I love making a big batch of hearty soup and taking that to work (well, not the whole batch at once ;) ). If there is no microwave, get one of those thermos soup containers and take it hot. Add a piece of bread or corn bread, and you're set.
Definitely track numbers (budget, income, net worth, savings rate, etc.). What's measured is analyzed, and what's analyzed is optimized. You will see results. I started 2 years ago with debt and living paycheck to paycheck. I just paid off the last of my debt yesterday and have an emergency fund. I have definitely changed my ways thanks to MMM, who rekindled the values I was taught by my family and squashed my need to "keep up with the Joneses."