My DS nearly 4 has a few bad habits, nose picking and eating it ( particularly bad with everything at the moment) , also wiping his food covered dirty hands on my clothes / sofa / carpet and constantly asking for his iPad. I've tried ignoring and generally I say don't pick your nose or iPad when I decide. I have a baby too, so I can't always grab him a tissue, but we have tissues boxes in each room. I feel the more it goes on through the day, the more I seem to get annoyed and get het up about it. I don't want to be that pissed off parent.
I also get a bit insulted when I suggest doing stuff and he says no boring I want IPad ( he doesn't get it for saying that and it's limited) but it's hard work getting him interested in doing stuff, especially during the limits of lockdown) I want to be patient mum who's child listens to being corrected 