If you are limited to Beer and Wine, i had suggested the following..
Wine - DENNER (no-one can beat that... you can get a huge variety there with some big discounts every week... http://www.denner.ch/fr/aktionen/aktionen.php ?)
Beer - Have a look in Co-op ( http://www.coop.ch/pb/site/common/no...html#wein/bier ) and Aligro for deals, coz Denner doesnt house the best of beers ( I never found a Carlsberg or a Guinness)
Otherwise, Heiniken in Co-op with 15% discount would be almost the same level as normal price in Denner.
Drink responsibly
are you throwing a Kegger?
I miss a good young wild Keg party
Lidl or Aldi, I have seen 6 packs of beer for 2.39 in Lidl..of course it all depends on if you after quality or quantity..
I'll take you up on this one... Corvo Rosso from Denner @ 7.95fr
go on...
**** yeah, a 500ml tinnie is about 1/2 the price here at the Denner etc, and you can drink it on the street.
To the OP, if ur really serious then go to a liquor supplier/wholesaler and try to ask for an account, then order a few kegs and a tap. I think we ended up paying 4CHF/litre for the Feldschlossen, delivered and picked-up. But we were lucky as we had contacts in the biz. Good luck.
Try Aldi. Their booze is cheaper than Denner.