I was born with a preference for cheap food. By that I mean I have always preferred cheaper cuts of meat, mince, stewing cuts, offal and joints, like stuffed breast of lamb to more expensive meats like joints of beef or lamb, steak, or even a good roastchicken. I also love veg and haunting markets, so I have aways been an economical cook.
Our tightest time came over one Christmas. All the children's presents came from charity shops. I waas in a charity shop when someone came in with a really battered coach built dolls pram. I snapped it up, DH repaired it and repainted it. I made bedding from my stash amd a cheap market stall and my lovely MiL knitted a pram set for DD's favourite doll. DD was ecstatic on Christmas day.
For DS I bought a second hand chmistry set. DH made a cabinet for it from gash wood in the garage and I added to it with things like Epsom salts, vinegar and other similar items, plus a book on home chemistry.
Both DC agree that that year was their best Christmas, ever.