I stick with Korbel Brut for the every day stuff (not really every day ).

The 750ml can be had for $14ish, but that's on the high side. I try to buy when its on sale for around $10 (or even less?).

It's also available in 187ml, 375ml, 1.5L, and 3L.

The smaller sizes, if you can find them, are handy if you don't want to knock off the 750ml in one sitting.