I do all my own DIY and I tape off everything. Learnt that lesson the hardware, I do not have a steady hand. Also if you go the tape route, buy trade tape (in

I do all my own DIY and I tape off everything. Learnt that lesson the hardware, I do not have a steady hand. Also if you go the tape route, buy trade tape (in the UK it's commonly known as Frog Tape (though that's a tradename there are generics), comes off without lifting paint, doesn't suffer from creep and is brightly coloured (green) so you can see it against the underlying wall.