Just had a chance to read through this and have been writing down ideas in my bujo 
I was getting back on top of things but then got pregnant and the past few weeks particularly I've spent the morning wrangling 21mo DD and the afternoon either on the sofa feeling sick or on the sofa crashed out
Looking forward to the second trimester and feeling a bit more normal again!
I use a combo of a simple bujo and filofax alongside onenote, the bujos with project pages/weekly planners/trackers/etc don't work for me at all. I have a simple notebook for my daily bujo list, a filofax for any planning that isn't daily and Onenote for my spreads and lists. I have a moveable habit tracker that is in my filofax too.
My aims for September:
Declutter more: What will be DDs room needs decluttering, currently our clothes and all the toys not on rotation live in there along with a lot of 'Stuff'.
Clothes Sort: We should but can't afford to replace mine and DHs clothes but we do need to sort them and I can probably bin stuff as I'll be in maternity wear for a while soon. DD will go up into the next size soon and I'm going to be very sparing with buying her next size up and buy what we need when it's needed rather than having an unmanageable amount of clothes for her again!
Meals: We need to stick to the meal plan, bulk cook and do online shops. I usually have to cook lunch and dinner as I'm gluten intolerant and vegetarian (currently vegan diet thanks to bfing DD) and DD is allergic to dairy, eggs and peanuts and I suspect an intolerance to soy. So sandwiches are not a regular lunch option and most meals take a bit of prep. Now I've gone off of tomato sauces too which knocks out our favourite dinner (tomato risotto) and my favourite quick lunch (tomato pasta!). We're planning to use the slow cooker more from now on and maybe look at an instant pot for Christmas!
Freezing kids portions in muffin tins is genius, I've been using ramekins but they're slowly all breaking! Thanks for that tip!