Extending/adding on to a finished piece.

Is there a way to add onto finished knits? For example, I have a few pieces of clothing in mind ( store bought). I have a few tops that need an overhaul, and would love to knit onto them to overhaul a piece. For example, making the bottom of a top longer, or adding on embellishments, etc. So my question is, how do I go about doing this? Many thanks. : )

Here’s an old thread where you asked the same question (basically) maybe some of the comments will help you out again now.

These ideas may help, too.

Jan sounds great, I’m gonna look at those sites for help. Thank you. : )