If you're already a regular customer of food-delivery services, you may be interested to know that Costco is currently selling $100 e-gift cards for Uber Eats and DoorDash for $79.99.
Both gift cards are delivered digitally via email and you're limited to one transaction per Costco membership for the DoorDash card and two for the Uber Eats card. So yes, you must be a Costco member to get these gift card deals (or use someone else's membership, we won't tell). Once you receive the electronic gift card, you can redeem it in the DoorDash or Uber Eats app or their respective websites.
Remember that food delivery apps like these have expanded their services a lot; you can make orders from grocery stores, pharmacies, and even big box stores in case you're feeling too drained to go get something yourself. Keep in mind that unless you have a paid subscription with these apps, you'll have to pay extra fees for the delivery. The good news is that there are many ways to get these memberships free (at least for a while), like free trials or credit card perks. You can also use coupons to offset those fees. Just remember to cancel your subscription in time before the automatic payments kick in.