No “seems” for me-- I’ve don’t the math. I went back to my bank account, and looked at spending at grocery and mega stores before I started doing mostly delivery, and then after that point, at costs of delivery shopping. Even factoring in cost of membership in Walmart-plus (once-a-year fee, or once-a-month, and yearly saves a bit-- it’s modeled on Amazon Prime), which makes each delivery no-cost, plus the tip-- and also paying the occasional $5 rush fee, delivery costs about 80% of physically doing my own shopping.
It also saves time; every time I run out of something, or have a particular need come up (ingredients for a potluck or holiday dish), I logon for five minutes and put the items in my cart; then when I will be home for several hours, I schedule the delivery.
Before I schedule, I can quickly check lists of things I usually buy to see it I missed something I need. But there is no temptation to add a lot of crap I really don’t need when I’m just looking at thumbnails, and not the real thing in front of me. Plus, I’m not seeing lots of random stuff strategically placed in the store just to catch people like me. So, no impulse shopping. Also, no running back two hours later for things I forgot.
Additionally, Walmart now has a thing similar to Amazon’s “subscribe and save” that lets me save on things I need on a regular basis. I am able to be judicious in choosing things when I’m at home on a computer as opposed to being in the store, when I would probably subscribe to M&Ms.
I do that too. I buy things in “large economy size” that won’t keep, and don’t freeze well themselves, but when they are cooked in a dish, freeze just fine. It’s also a good way to take advantage of veggies that are on special because they are overripe, and need to be cooked-- and cooked immediately. I’ll make something that gives eight servings, and save them in reusable containers in the freezer-- I’ve got a set of containers that are both freezable and microwavable, cost very little (on Amazon), and hold what works as a single serving for me (~4oz).
Sometime DH or the boychik want two servings, but they can take two different things. They can also be supplemented with bread, fruit, salad, etc. and then a dessert, and they are sometimes bean dishes that need rice or bread or something with them.
There’s always a container of cooked, brown Basmati rice in the fridge. We buy 10lb bags of it, and I make it in a slow-cooker, and then put it in the fridge. Lasts 3 - 4 days.
I grab a freezer dish to take to work sometimes, and it thaws to the point of needing about 2 minutes in the microwave to be perfect.