We use almost no disposable products. The only exceptions are freezer bags, which we reuse when possible, TP for dh, though Ben and I use cloth, and pine chips instead of cat litter. It's so much nicer and way cheaper. Not smelly, very clean, no dust, not sticky, no grime, almost weightless. I also switched from the big covered pan to the little portable pan, so each change uses about 1/2 as much. We reuse grocery bags for trash and recycling. Everything else is cloth--napkins, diapers, kitchen towels, lunchbox, mama cloth, umm, whatever other paper things ppl use.
You said you make your own cleansers (yay for you!), but have you tried making your own bath and personal care products? Cheap, easy and often far more effective than store bought. I make substitutes for deodorant, shampoo, body scrubs, conditioner (both rinse and leave in), face wash and scrub, and lotions. We use citrus scented dishsoap instead of flea bath. Much more effective, less caustic, and less expensive.
I live in a 770 square foot apartment with a tiny patio, dh, a 3yr old, a cat and a baby on the way. We are planting a container garden for herbs and veggies and perhaps berries. I'm using window boxes, sprouting on the window sill in Ben's room, then tying them to the fence in 3 tiers. Not sure if they will get enough sun the produce well, but so far so good. I have snap peas, bibb lettuce, spinach and dill sprouting now, and we're planting carrots and onions tomorrow. We just have to remember to keep the bedroom doors closed while we're actively sprouting indoors (about a week at a stretch). If you can't do that, perhaps putting a baby gate in the window will keep the cats away. Of course, our space is limited, so I won't be growing corn, but when I finish, I should have around 10 crops and an herb garden. And I'm going to start composting with worms probably next week. The bucket is ready, I just have to contact the farm and go get the worms. I'm using a tiny little bucket. Not a space issue there.
I think someone already mentioned cooking in large batches and freezing. I've also found that staying away from superstores saves money. I thought I was being frugal by shopping at Walmart, but everytime I go in there, I walk out with 4 times as much as I went in for. Now I don't go, and I just don't need all those things.
One last bit. I LOVE my local consignment store. All of my kids' stuff comes from there, and I get much of it in trade. I bring in Ben's outgrown clothes and toys that I'm not totally in love with, and I get either a check, or (better still) a big package of new stuff for him. I find that I get a better deal in trade than if I buy and sell. Last time I brought in a package, she offered me $30, but there was a brand new double stroller worth about $70 for $35. We agreed on a trade, so I saved $$ on the stroller and got an extra $5 for my stuff.