Oooooooh its years since I had pet mice, but they are lovely, funny , twitchy nosed, bright eyed little rodents.
Good call buying females , male mice STINK.
Lots of playthings - boxes, loo roll tubes, ours loved their wheel (but at 3am I wished they would just pipe down and sleep ) you can get the silent ones now.
They are brilliant escape artists.
Ours got out of their cage, no idea how. The bars must've been too big a gap where the door was?
My DDad built them a customised MouseHouse, he made different levels and put ladders in ( I think budgie ladders) the little madams ignored these and scaled the mesh on the front to get up/down.
You can let them run from one hand to other , along your arm and back.
You can hold their tail at the thick end near their rump to secure them, but be careful the thinner end, its easily damaged. I didn't lift mine by the tail, ours would let you scoop them up, but once their sitting you can sort of secure the nail between your forefinger/thumb.
They are sweet. Bit noisy . Very quick.
They pooh at liberty and pee, no real bladder control (unlike my guinea-pigs who will give a heads up. )
One of our girls was pg when we got them so we did miss out a bit on the early day with them when she raised her litter ( seeing as some rodents will ignore/eat their young if disturbed) .
Enjoy them, they are fun! What are you keeping them in?