At home, we take part in a local group of vegetable and egg buy/sell. The idea is good and simple. A local producer grows vegetables (in this case ecological ones but it is not compulsory for this idea), it packs some bags every week with some variety of them depending on the season and leaves them on monday in one place. During that day the ten customers take the bags and discover the surprise of that week in form of fresh, healthy and local food. The payments are done for three months periods and the producer gets a fixed customer group that visit him/her every year.
There are many advantages as promoting local jobs in primary sector, avoiding complex intermediate markets, the confidence between customer and producer,… and the reduction of Kms for the vegetables and the associated CO2, I always consider funny that the lettuce I am eating has traveled more than me in the last year.
This possibility is possible, it is reasonable and it is growing!