I feel its time to give up breastfeeding, im gl...

I feel its time to give up breastfeeding, im glad weve made it this far its been a challenge. my bub will be 20 weeks mon. So once ive weaned, how do you go about your day with bottles, when your out, whats the best ideas. do you prepare all bottles in morning? how many bottles teats should i have? She uses avent bottles for her last ebm feed of the night. on rare occasion uses karicare gold plus formula- best to stick with that 1?