Hi Frankie,
My sister has 3 kids (5,3 & 4months) & the older 2 always fight for her attention & also always want to play with the same toy & also fight about the cartoon network programme.I think she's a supper mom cause she knows how to negotiate inequality & play a ref mom while keeping her sanity.
Toys:she always buy 2 similar toys to avoid fighting over 1 toy
TV:she has dual view so when her boy wants to watch bentan on cartoon network the girl get to watch mickey mouse club house on Disney Junior at the bedroom.
Her NO !!is always firm & she is very consistent.
She also use time-out technique especially when they throw tuntrums & fight.She swears by it & thinks taking the kids out of the situation & placing them in a calm & quite environment gives them time to reflect on what they did wrong,take responsibility of it & apologies to the mom & the other sibling.
The truth is toddlers and preschoolers are supposed to be rebellious. Saying no, testing limits & tearing through the house is like their job & believe me they understand very well what they are doing so its important to never think they dont understand their actions.Toodlers comply about 80% of their time so when they do its important to give praise to good behaviour & during the 20% of naughtyness,exercise discipline immediately.Soon they will understand that you are the ruler & that you will not take their bad behaviour.
I have a 2 & 1/2 year old & she also drive me up the walls but I'm already disciplining her so she knows when mommy says NO,she means it & most of the time I ignore her tuntrums & after a while she just gives up & do what I say she should do.
Good Luck,Be Consisten & Stay Calm!!
FLY