Well there is:
1A Everyday
Fixed Axle February
5A May
Slimline Summertime
Mono-Metal Monday
2A Tuesdays
Fixed Axle Fridays.
I play yo-yo everyday, so for me its a way to focus on a play style and on part of my collection. I don’t have a strict rule or anything, I regularly play fixed axles almost everyday anyways, as 0A is a great way to warm up. So even though its Tuesday I’ll give the loopers some reps at some point today , but I’ve already been playing fixed axle and an 1A unresponsive mono-metal this morning, I also have a bi-metal on the desk as well.