It can be hard sometimes to use up all your produce and not waste any when you live alone or with one other person (especially one who does not eat enough vegetables and fruits grrrr....), but I am anal about food/menu planning for the week and have gotten to where I use up almost every scrap of the produce I buy by planning carefully. I make all my work lunches for the week on Sundays so i make a huge batch of stuff like salads, soups, casseroles, homemade bread loafs etc and then keep portioned meals in tight fitting tupperware in the refrigerator or freezer for the week for those meals. The produce will keep for a full week usually, even the cooked soups. Some will keep longer if you don't chop it ahead. I'll make two or three loaves of bread at a time and freeze some, or make a big 9x13" pan of homemade bean energy bars and freeze them to have on hand and they keep indefinitely. So much cheaper than buying individual prepackaged foods like cliff bars or commercial vegan bread etc. Having a few hours a week carved out just for preparing stuff like cooking dried beans, making homemade breads, bars etc is very helpful. A crockpot can also be of great value to make several meals at once and save on time.
Transportation...walking, cycling, city bus all help enormously to save on gas, car insurance, maintenance etc, though time can be an issue. I have a huge backpacking canvas pack I also carry on me to the laundromat to do laundry, or to stuff with groceries if I don't use my car.
Second hand stores are great for stuff like clothes, towels, blankets, books...Libraries are also great for vegan/vegetarian cookbooks and free entertainment.
I don't wear makeup or use a lot of commercial cleaning agents, but use stuff like lemon juice, vinegar, or washing soda, and I either use pure essential oils/vinegar/water for washing my hair (one little bottle of pure essential tea tree oil will last me almost a year) or a bottle of Dr. Bronners liquid castile soap that lasts me a solid three months if not longer and I can use it not only for hair but for cleaning my bathroom and dishes etc. So I save a good bit of money on toiletries/cleaning etc. I used to make my own dish washing soap but my husband, who does most of the dishes (since I do the cooking) didn't like that too well lol so I did compromise there and buy vegan dishwashing liquid. Of course I have very short thick hair so I don't require much maintenance.
One thing I did and wish I wouldn't have...well two...I spent too much money on a smart phone and my monthly bill is phenomenal and two...I agreed to have my mother and father in law on my cell phone account. They have their own phone and live a long distance from us but are on our account to save money and send me their portion of the bill every three months. However, it is hard to budget because the bill is still so high and I have to time payments when I get their portion of the money which they only send in a lump sum every few months. I really wish I wouldn't have included relatives on existing accounts but I am too nice to say no. Be very weary of doing this lol.