Dd1 is a very independent little soul (also 4 in Dec). She pours out her own drinks, stirs cocoa into hot milk, puts her clothes away in her drawers, puts her shoes, coat and pyjamas on herself (usually not at the same time!), helps me with dd2, gets undressed and into the bath herself, pours out her cereal, daddys cereal and dd2's cereal, sets the table and helps me tidy. She genuinely enjoys doing all this and I believe it has made her very much more confident. I think its worth taking the time to let them do it if they want to - things do take longer/are messier at first but she is actually quite helpful now! She loves to put the dirty washing in the machine (mummy does the liquid!), fill the bird feeder and feed the cat.
At the moment we are practising undoing a lunchbox and sandwiches/drink cartons - so that she will be totally confident when she starts school in September. Also she isn't good at pulling up tights and pants after she's been to the loo (fine with trousers but gets into a pickle with tights) so we are practising that.