I'd like to do a few DIY projects with plexiglass (from Home Depot) but would like them to have smooth edges.

First question: I have three tool for cutting at my disposal (circular saw, jig saw and dremel). Which is best and what type of blade should I use?

Second question: How do I finish the cut edges? Is sanding the way to do this? If so, what grit should I use? Hand sanding or orbital?

Third question: What do I use to bond pieces together? I understand that Weldon is difficult to obtain. Is there a readily available alternative?

Just to be clear I will not be building tanks or anything that requires high grade acrylic.

Thank you for your help.

Tom