Make it a not too strict rotation - people will appreciate that you r the one that feathers their bed in a smooth way (not financially but emotionally) + you will be the one that has all the infos in your friends group at all times. But never make it a must or see the bad in people if they are not capable of putting the same effort/time in it vice versa atm.
(In the long run this rec, I’m pretty sure, feathers your own bed - give it a try and start a hotline bling on ya homiezzzz 📞 :))