Expiration dates vary, but here’s a smorgasbord of PJ coupons for you hungry folks: $10 XL 2-topping:  Place an online order and enter promo code XLPIZZA to get a 2-topping extra large pizza for $10.  You can start your order at:  https://www.papajohns.com/?promo=xlpizza  (the promo code will be prefilled for you).  Good today through October 28, 2018. $10…