I listen to music in the shower and practice little dance moves first thing in the morning.
Some for lifting/gym training. Very specific things that don't do anything outside of mark mental cues for when it's 'go-time'.
The butt wiggle before a deadlift, the hands clasped before bench, the head nod (3x, no more, no less) before unracking a bar for a squat.
Actually, training itself is a sort of ritual. It signals the end of my day - I walk from work to my gym, then go about my training for the next couple of hours. Once I'm done there I'll hop on the bus or get in my car if I drove, and that's my day done. The ride home I'll listen to some soft music and unwind, before cooking dinner (which I find relaxing) and hanging out with my partner and flatmates.
An important one though, whenever I get home and my partner is already home, the first thing I do is seek her out and kiss her as a greeting. She's on to this now, so she'll hide and I have to earn that kiss. If I beat her home I'll hide and she has to find me for said smooch. I also leave for work before she gets up, so our morning ritual ends with me giving her a kiss on the cheek, and she'll sleepily turn her head to get another kiss on the lips, then I'm out the door.
I asked her once if this annoyed her as she's clearly still sleeping, but she said whatever her sleepiness conveys, she'd be distraught if I changed it up now.