I always woke up with massive boobs in the morning, so I would feed from one side, and then express from the other. That might not work for everyone, but dd only ever fed from one side at a time.
Dd had one bottle of expressed milk every day, from 2 weeks old. It saved my sanity! When she was tiny, I would feed her about 9pm and then go to bed. Dh would keep dd downstairs, give her a bottle, then bring her up when she needed the next feed. Later he would do the 6am feed before he went to work.
At 6 months, I stopped expressing and she had formula for that feed. Mostly just one feed a day, but because she was used to it, I could sometimes go out for the whole day, and I went away for 2 nights when she was 9 months.
Don't breastfeed if you don't want to - your baby will be fine either way. But expressing or mix feeding does take a lot of the pressure off, you know that if you're ill, or exhausted, or want to go out, or to stop breastfeeding altogether, the baby will take a bottle and its not all on you to feed them.