Boundary setting for a 1yo?

[BabyLabyrinth]

DD is going to be one next week. She's wonderful, bright and very mobile (walking for a month or so now). But she thinks the bin and the loo seat are the most delicious things ever. She adores emptying every drawer within reach. She throws her food on the floor with a glint in her eye and giggles when I try to tell her not to.

Originally I just assumed she was a baby and thus there was no point in trying to tell her not to do something because she wouldn't understand. But she does understand! And everyone around me is telling me over and over that I have to set boundaries and be stricter with her including CC so she sleeps, which I'm still ignoring. But how do you set boundaries for such a little person? I don't want to get cross with her for investigating her surroundings, but I also don't want her to grow up thinking she can do whatever she wants ...

What I currently do is say no loudly when she does something I don't want her to. When she then does it again, I remove her from the situation/room and plonk her down on her playmat with some toys to distract her. This doesn't appear to be working, but maybe I just have to be consistent and keep going?

She throws her food on the floor whatever I do, seemingly. I'd really like her to stop this ... How naive am I being?!

Any ideas?

Sounds to me that you're already using the right techniques to define boundaries. One thing to add though... The food throwing is a phase! DS went through it as well and eventually after a few months grew out of it. I doubt telling him off for it made much of a difference.
Babies and toddlers go through phases, and as they get older they get better at one thing but then do something else. When I read through your post I thought oh I remember all this (DS is nearly 3) but he is not actually doing it any more (has moved on to other annoying things)

Around a year old is a tough stage as they have the desires and impulses of babies but are developing the capabilities of toddlers... All I can say is that things will be different in just a few months' time. I can clearly remember being at a toddler group at snack time when dd was about 13 months, she was tipping her food off the plate, trying to throw herself off the chair head first and leg it, ignoring me completely... Next to her was an 18 month old eating beautifully, responding to her mum and I just thought 'dd will never be like that!' Well, she was, and now at 2 she has so much more sense (where a year ago she was licking the bin, now she can get a tissue, blow her own nose, walk to the bin, put the tissue in and close the lid, then ask to wash her hands). I think you just need patience (lots of) and faith that she will respond and remember far more as she gets older. When dd's understanding was good enough we had a bit more success with 'can you give that to mummy please' or 'please put that back in the cupboard' than 'no' - but dd is a stubborn one, like me, and a direct battle of wills never ends well.