In general, I wouldn't recommend keeping a sub for more than two days, but as I said, it depends on the type. If you need to keep one in the fridge for three days, one using sausage or deli meat should be okay. I'd also keep veggies to a minimum (especially the “wetter” ones), and minimal sauce.
Wrap it up: To seal in all the flavor and keep the sandwich together, wrap the sandwich tightly in plastic wrap before refrigerating. The bread will soften slightly overnight, but the crusty exterior will keep everything contained when you're ready to unwrap and eat.
Stick with just the meats, cheese and lettuce/spinach and some mayo. If you wrap the whole thing (including the outer paper wrap) in 2 layers of plastic cling wrap, the sandwich should keep just fine for up to 3 days in the refrigerator.
Keep garlic cloves in unpeeled head form in a well ventilated terra cotta garlic cellar at room temperature is ideal for wicking away moisture and keeping it away from your garlic bulbs. Storing garlic in a basket in a dry, dark area with plenty of air circulation is ideal.
the average would be 80s to 90s. JK Rowling revealed in an interview that Wizards have a much longer life expectancy than Muggles. In 2000, Rolwing told in an interview that Dumbledore was 150 years old, but later told that Dumbledore was 115 years old when he died.
JK Rowling have explained in some of her interviews that wizards have longer lifespan than muggles. This is mostly due to their ability to heal magically. "Broadly speaking, wizards would have the power to correct or override 'mundane' nature, but not 'magical' nature.