we are budget dog owners
harness was about £5 on-line. Collar and lead from B&M bargains, they do a good range of dog leads.
food we order on-line, decent quality at reasonable price, they deliver a huge sack every 3 months
beds, again B& M bargains, or The Range, under £20.
Toys - Asda. cheapest place I've found.
The only thing which costs is the insurance. We found one we were happy with which wasn't the most expensive. I would not stint on insurance for a dog.
Our cat and rabbit were never insured, but a dog is very expensive.
I don't have two of anything, except blankets, as we stick it on the radiator and it is dry soon enough (constantly washing harness due to rolling in fox poo)
Actually, once past the set up costs, leads, beds etc don't need to cost much at all