I agree that a few days a week sounds like a better approach.
I'm vegetarian plus I eat at least one Vegan (no animal products) meal a day and on Mondays I am fully vegan. After doing that for awhile, I found I liked the vegan diet and now 90% of my cooking is vegan, I pretty much only eat dairy when I go out.
So you could also try something like 1 vegetarian meal a day (or one carnivorous meal a day) depending on how much you would want to cut back. Check out the
Meatless Monday website- lots of great meal ideas for non-vegetarians wanting to give meatless a try.