Hi, R.--
My two-year-old daughter does this, too, especially when it's diaper-changing time or night-night time. I know that it's a game and I just treat it that way. I'll chase her around the dining room table a couple of times (since I really could have caught her the first time probably! :-)) and then I'll tickle her and cuddle for a minute and then she'll usually comply. It definitely takes a few extra minutes--especially if I'm trying to get ready for work in the morning!--but I just look at it as her being her ornery self and it's a way to play and have fun. I know that it's frustrating because it seems like he's defying you, but if you just play along for a couple of minutes, I'm sure he'll giggle and laugh and then do what you need him to do. Oh--and all phones, tv remotes, wallets, keys, etc. are "off-limits", but seem to get in her hands also. I just tell her that it's mommy's or daddy's and take it away from her. She knows that she's not supposed to touch these items, but tries to see what she can get away with--don't worry it's totally normal behavior.
Take care!!