Hi there!
I shower both of mine or they get in the bath with DH. I don't do baths very often....don't have time when I am alone with the two of them for teatime and bedtime. We got so used to showering Oscar (he loved it so it was different) that we didn't even take out the baby bath when Emma was born....just used our sink originally (which is a basin- bowl - shape so perfect for a newborn) and then she started to bath with DH and Oscar when she was around 3 mths.
In saying that, I do have a bath, Emma will stand and hold on the side of it and has been doing this since she was around 9 or 10 mths...
In my parents, there is no bath, just a large shower unit and this is akward but one of us would just go into the shower with either of them or O by himself now he's such a big boy....
My mum actually bought what is supposed to be a laundry basket/bucket type thing which we used as an extra large baby bath for Emma and my niece when we're at my mums....its big enough even to hold 110cm Oscar at a push so this would be another idea....
It just takes a little getting used to really and now E is used to it, she is scared of normal bath times, she prefers to stand even if the bath has water in it to sit in....
S x