For sliced deli meat, I will only keep it about 3 or 4 days--this includes thing like sliced hams, bologna etc. Cured meats like pepperoni, salami I find last longer without getting funky. Cheeses may last a bit longer maybe 10-14 days. I like really fresh deli meats, so rather than get a ton, I'd rather go to the store twice in one week. Just something better in the taste of fresh sliced meat.