the first thing you ought to do is talk to your husband and get united on how you are going to raise your children. if he is extra hard on your children, it might be because you are too soft on them.... which probably is a result of him being too hard.... which is a result of you being too soft..... vicious cycle.... it's how my parents were when i was a kid (only opposite... my dad was the extra soft one), and it caused a lot of conflict in their marriage, and consequentially my childhood was filled with a lot of unnecessary parental drama! so get a babysitter, take your husband out to eat and then go for a nice long walk somewhere beautiful and relaxing where you can talk about things.... and prepare him ahead of time so he doesn't feel ambushed!
it helps to establish some key rules together, like don't disagree with each other (especially about how you raise your children) in front of your kids. if he says something you don't like, ask him to talk to you privately about it, and then give him a chance to explain his reasons before you automatically disagree. ask him to give you the same courtesy. also, if you are not sure how he'll react to something, before absolutely deciding on it, talk to him about it first. learn to compromise!!!
now as far as the binky, bottle, blanket, and potty training are concerned....
it really is time to give up the binky. my daughter was 2 1/2 (she is 3 now, but will be turning 4 soon) before we got rid of the binky, and i thought it would be hard, but my method was genius, and she gave it up cold turkey! first, i had her doctor explain how a binky will start to push her teeth out and make them crookedy. then we talked about it all the way home, and i even went as far as to tell her that if she has a binky for too long, it could make her teeth turn black and fall out (i don't see it as lying, i think if a person continued using a binky into adulthood, it really could cause all sorts of rotten teeth problems!). then i found images of bad teeth and showed them to my daughter and asked her if she wanted her teeth to look like that someday, or if she wanted beautiful princess teeth? she quit using her binkies right then and has never wanted them since!
for bottles, my daughter gave them up at around 2 1/2 too. i took her to the store and let her pick out her own brand new special sippy cup just for drinking milk out of. she picked dora cups, so to this day (she's almost 4 now), she has "dora milk" in a cup (she will drink milk out of any sippy cup now, but it's all "dora milk" to her!).
i don't see anything wrong with having a special blanket, unless she's dragging it all over creation. it does tend to get a bit unsanitary. if she's taking it out everywhere (grocery stores, malls, the park, etc...) you could talk to her about germs and how her blanket is getting disgustingly full of germs and is getting all nasty, and maybe you could make a rule that the blanket at least stays at home where it's safe from all the yucky germs (don't let her drag it into the bathroom though!).
and for potty training.... with my daughter, again, around 2 1/2, she wore pullups and wet them all the time, simply because she was playing and didn't want to stop to go potty, and she knew the pullups were like a diaper. i finally put her in training panties and she wet them all day the first day, and it made me crazy! the next day, she wet one time, and i made her "clean" it up (just mopping it up with a plain rag) and the whole time talked about the nasty germs and eeeew that is so disgusting and gross! and i made her rinse her panties out and again, eeeew, that is just nasty germs, how disgusting! then i had her wash her hands and put her own fresh panties on, with a warning that if she wet her panties again, she'd have to clean it up again.... and she stayed dry the whole rest of that day (we did use pullups at naptime and bedtime, but she kept them dry!). the next day, she wet her first pair of panties, and so i had her clean it up again, same as the day before. from then on, and to this very day, the child has NEVER had an accident again (the occasional little drips when she waited just that much too long, but never a full blown accident.... well, except for the night my dad died, but she'd been in the car all day, and up until 4 in the morning at the hospital, so that wasn't exactly her fault!). so you could try putting her in panties and having her clean up her own mess when she wets them. oh, and while my daughter was in washing her hands and putting on fresh panties, i'd sneak out and really clean up after her using disinfectant and such! we did stick with pullups at naptime and bedtime, and if we were going to be gone all day.... just incase.... but she always kept them dry!
i agree with aelliot.... push the big girl thing. point out all the things that baby sister can't do, and how lucky your big girl is that she
can do those things. you might have dad stay with the baby and take your older one on a big girl date, and just do big girl things (like go see a movie, or go to a park, or go to lunch at the mall and hit the indoor playground....). just something special to show her that being a big girl isn't a bad thing! my girls are exactly two years apart, and i really stressed the big girl -vs- baby thing, and i tried so hard to help my older daughter feel like she was big and important and crucial to have around to help me with her baby sister. she was "mommy's big girl helper" and did all kinds of things to help me with the baby. she got diapers, bottles (i'd make it and leave it where she could reach it and get it for me), wipes, burpies, etc.... when baby would cry, my older daughter would sing to her to help calm her down (it even worked on occasion!). when baby dropped her binky, my oldest was right there to pick it up for her! she LOVED being a big girl helper! now, she helps sort laundry, and even moves it from the washer to the dryer, and will take it out of the dryer and put it in the laundry basket for me! she has her own broom and dustpan and loves to clean up crummies under the table. the kid even loves to make her own bed every morning and does a really good job of it too! and inspite of all her big girl helpfulness, she isn't old before her time or anything like that! she has this huge imagination, everything talks (even the laundry talks.... "hey socks, wait for me! i'm coming to the dryer too! wheeee!" as she's throwing a shirt in...).
ANYWAY, this was way longer than i had intended.... hope you can find something helpful in the midst of all my rambling!!!