Tricks to get baby to sleep in bassinet/crib?

I’ve found a few things that seem to help so I thought I would share and I ask that you share thing you have discovered!

1) establishing a routine. I’ve started to create a routine with both myself and my baby to set us up for a long night sleep (5 hours at a time if I’m lucky) I pump once in the morning. Then at night around 8pm I give him a bath and let him splash around for at least 15 minutes. I then put some lotion on him, a clean outfit and his swaddle. I’ve found he likes the ones with Velcro the best. I then defrost a bottle from my freezer stash. I take him upstairs in our room and get everything ready. I then give him his bottle around 9pm (2.5 ounces of bm) and let him drink until he falls asleep in my arms. I then turn on my white noise app on my phone and put him in his bassinet. He normally sleeps for at least 2 hours this way which is a miracle from what it used to be.

My son will be 3 months old on the 9th of January.

What things work for you?