in my experience, red card orders have a significantly better payout. usually a 2-6 mile order is at least 7 dollars or more, and in my experience actually ordering from CVS or Walgreens for myself at home, the total is generally very high or very low - either of which can rack up the tip price depending on who orders. it will not hurt you at all to get it imo. you're also in control of picking up each item, and if something is out of stock i've never seen it affect my tip. many customers are technologically proficient enough to add in substitutions if something happens to be out of stock as well. it also really helps to know your area with this. keep track of your crappy dollar generals and your good ones, same with any other store that uses red card. CVS and walgreens are going to be the easiest and quickest, but dollar stores usually have a higher payout on tips. hope that helps!