Masking tape I just don’t get it , it’s the most useless pointless stuff I have never really used 😉 re- painting my kitchen this week … all I hear is remember and use masking tape and cling film your cupboard doors…. what the fuck!!!! Why why why ??? Ok it’s a new kitchen and had already decided that a roller was a no no because of the splatter factor but cling film really … that’s just, well a waste of bloody cling film and anyway that stuff never never comes off the roll properly!!! So after some thought decided not to tie myself in knots with the cling film ….blatant lie I dismissed it as soon as it was mentioned and probably sniggered too 😉
But the masking tape … mmm did consider it for a moment but remembered the last time I even bothered … it doesn’t friggin stick , it’s never pissing straight no matter how hard you try and unless you use the paint block ( my price has been hiked to astronomical proportions because I promise you pure straight line magic and I’m a prettier color ) then it’s gonna bleed and you’ll have to touch up anyway .
But what about your cutting in ? Round the ceiling and stuff …. well I masked off the ceiling once , end result was a wonky edge and a big blob of paint about 6inches from the edge ( taping the entire ceiling seems a tad extreme ) so pretty much decided it was a stupid pointless exercise and a serious time stealer much like ironing !!! Best thing for cutting in is a steady hand , not being all delicate with the paint , use a decent size brush and practice practice practice and I like to think I pretty much have it nailed now . 🙂
I will say the green 🐸 tape stuff is great when doing smaller things such as furniture but for decorating nah , I think you have guessed,I just wouldn’t bother !
I sent after pictures to one of those who told me to use the tape … the reply ” looks good , but I can’t see any tape or cling film anywhere !?!?!? ” more to the point can you see any fucking paint where it’s not meant to be ???? Eh that would be a NO!!! 
Before 
after …. no blue splodges on my ceiling 😉