OK, in the category of things that everyone seems to know how to do that I just can't figure out:

What are some tips on giving baby a bath?

Things I'm having trouble with: Rinsing her hair. Every night we have a terrible time with this. Scooping water with my hand and dribbling it down her head=ineffective. Using the washing cup=a torrent of water that makes her gasp and choke and eyes tear up. Plus possibly sacrilegious. Tilting her back just doesn't work. She doesn't cooperate. It seems like it would be easy but it doesn't work.
How do I get the soap out of her hair?

She is sort of outgrowing the baby bath with her fat buddha tummy and chubby thighs. Tonight I put her in the big bathtub, but she didn't seem comfortable and was slipping and sliding around trying to get her rubber duckie; it made me very nervous. I filled it up to her chest, then let out some water so it was between her tummy and chest. How high should I fill it? When do they go in the big bath?

And any other tips people want to share.

TIA!

For issue #1, they make special bath "sun visor" hats for little kids. My family used this when we were little. They help protect the eyes and face from the water.
Like this: http://www.toysrus.com/product/index.jsp?productId=2792398

Some people swear by that visor thing that sits near the top of baby's head and let's water cascade down without washing into their eyes.
Try using a handheld showerhead to gently rinse her hair. Point to the ceiling (better yet, stick some funny bath toy on the curtain rod) and point so she'll look up and you can quickly rinse. I usually fill the water to bellybutton height and keep the door closed so the heat stays in and their upper body doesn't get cold.
If she's outgrown the baby bath, try a bath ring or inflatable tub.

Don't baby baths come in different sizes? You can get one that isn't meant to fit in a sink but rather is for bigger babies/toddlers in a big tub.

Those are for little babies too-- toddlers can't fit unless they don't move at all. There are bath seats for kids who can sit up, but sometimes the baby just won't stay put!

Pouring water over with my hand usually works, but if not you can also use a clean wet washcloth.

We still bathe Shaina in a sink in a tub and we have one of those showery things meant for dishes which we use to wash her hair. It works just like a shower for big people! Is that an option for you at all?

BTW, you DON'T need to wash her hair every night! We wash Shaina's hair like twice a week, and that's enough. Otherwise I just rinse it with water.

Here's a pic, usually we protect the eyes while showering her:

Depends on the size and age of the toddler. Personality too.

you make it look so easy, ltl!

we have a divided sink and she is too big for it now. the bath wouldn't fit in it. also it ooks me out a little to put her in the sink. it's old and not-so-clean.
i wash her hair about every other day.

i will try the visor, if you say they work, nechama.

It actually took me too long to figure out to move them to the big tub earlier you just make it really shallow.

Well, she is too young to use swimming goggles!

Have you tried rinsing her hair with a washcloth? Soak the washcloth, and squeeze onto baby's head. Unless your baby has tons of hair, it should work (it's what I do.... I sometimes still do it for my big one as well, and he has tons of hair, so I just do it repeatedly).

When my older one got too big for the baby tub but couldn't quite sit in the big time safely, I would put the baby tub inside of the tub kind of perpedicular to the length of the tub, so that basically half or more of the bathtub was blocked off. With less room to slide, the baby feels more secure, and you have less scrambling to do. And you can get a bathmat or not-slip sticker things to put on the bottom of the tub to help secure your kid.

I've never really liked the bathseat things, I find that they're not very stable, and it's hard to wash the baby properly in them. I would highly recommend this tub; it's like a mesh seat with less structure than a regular infant tub, and you can either buckle your baby into it or just have her recline in the seat, so it gives her some hold but she can move as she pleases without bumping herself all over the place.

You do when your kid likes to 'feed' her hair when she is done with her food ...

Your kid looks adorable and has gotten so big. She looks like she is well taken care of - lot of nachas.

YL - I/we loved the bath seat from 6 months - 1 yr it gave my kid the freedom to enjoy the bath securely. Great idea to use a wash cloth.

First off, how old is she? can she sit up? Does she have a lot of hair?

My babies all have plenty of hair (from the day they're born.)

What we do is if baby fits in baby bathtub (until about 6 mos.) we just lie baby and baby is sort of in the right position for water/soap to slide down the back. We tend to use a washing cup for the rinsing part as it works best.

As baby gets older and can sit, we fill bathtub up just an inch or two, basically to cover the legs, but not too high. This way baby can splash. If baby doesn't yet understand 'look up at shamayim' than I just put my hand there and try to 'catch' the water and push it back. Basically I use my hand as a visor and also if I can try to tilt babies head back, if possible.

Once child is old enough, she can look up to ceiling with you telling her to and either use a shower, cup or the little flower-watering toy that somehow appears in your house and you don't know where it came from.

Word of advice: read the reviews on Amazon first. One of the Summer Infant Company's (maker of the product you linked) bath seats tend to get moldy. I think it's this seat. Though yours looks better bec. it's all mesh, people also complained that becasue of the high stand, the baby was left mostly out of water and tended to get cold.

We used that one when we were in someone's house and my baby kept slipping out - really bad buy.

For newborns i would recommend something like this (- sorry picture doesn't show it too well read the description), and for a child from 6 months something like this.

Oh and as my kid got older i put more water and just watched her carefully. I also tried to introduce water splashing on/around her frequently and smiling and laughing to show her not to be afraid of water. To wash her hair (I only put a little bit of bath-soap as she doesn't have much) i hold her head as she lays down and I sometimes tell her to kick her feet or look at Mummy as we sing "Row, row, row your boat ..." and she loves bath time.