I'm a bit sick of coming up with good intentions here and then progressing no further with them, so I'm not going to frame this as a plan; but I might be coming to the point where I will be hard-hearted enough to stop nursing her to sleep. It has occurred to me that by the time Monkey finally slept through the night at 26 months, he had been going to sleep without the boob for 3 or 4 of those, and it's just possible that the two things are not entirely unrelated. I had cut down nursing to three times a day, and then just two, when he was 21 months and I wanted to get pregnant again, and when I was pregnant (and he didn't just give up on his own, as I'd been hoping; but nor was it quite excruciating enough for me to just deny him altogether, as I'd been fearing) I cut out the midday session and started walking him to sleep for nap, and brought forward the evening session to "side on the sofa" before bed. Then first I and later his Dad would lie down with him until he fell asleep.
I know that took some (many? how many? I can't remember; oh cruel head full of holes) long and painful bedtimes before he got the message and would just settle down beside one of us and eventually drop off; I vividly remember holding him on my lap while he refused to lie down but instead thrashed around, sobbing pitifully (him, not me), and thinking how quick and easy it would be to just end this right now by nursing him. Then, later, he would finally drop off lying right on top of me, for maximum entrapment, his head heavily on my head, preferably cutting off all respiration, matricide due to cruel and unusual denial of boob.
But at the time, I had a bigger picture to consider that helped me - and Pushover is my middle name (except when it's Pigheaded) - stick to my guns: I knew we needed to have a new bedtime routine in place well before the new baby arrived. This time, without the spectre (and I mean that in the nicest possible way) of a succeeding infant to maul my boobs in its turn, I haven't had the same pressure to deal with Mabel's bedtime, and have been content to let the daytime nursing wax and wane depending on her mood and our engagements. I still nurse her in public - partly as a lactivist statement, or maybe just because it's fun to be shocking - but now that our travelling is over and we're getting back into our regular busy term-time routine, she'll probably nurse less and I'll try to keep it mostly at home. I really don't want to stop altogether, but I'd feel pretty silly if all this lovely nursing is what's keeping her from learning to stay asleep for more than a couple of hours at a time.
So maybe, soon, it will be time to find out. Of course, last time we didn't have the sleeping pre-schooler to consider when Monkey was making a row and taking hours to conk out. Maybe we need to soundproof Mabel's bedroom first.