Well be need to bring back farmers markets, where local produce can be sold straight to the buying public. The producers will get better prices, the shoppers get better fresher items, and the giant corporations that currently run the supermarkets will fade away as a bad memory.
However you will quickly find that foods you buy every week will not be available all year round from markets and while this is not a bad thing, it would take some getting used to. Having to eat only what is in season would be quite a challenge and I suspect there would be some boring food during winter.
Also all of the regulations regarding....well everything to do with food and selling it makes farmers markets pretty hard for most farmers and I reckon a lot of them would either want to take a break on the weekend or be working on their farms instead of being at a market selling produce.
Also for the average farmer out here where I am selling wheat direct to the public would be impossible.