I keep safety pins in my box. If I'm needing to pick up a lost stitch, I like to anchor it first, just in case it decides to undo itself further down the row.
My girlfriend found me the neatest knitting gadget. It's a small crochet hook on one end and a knitting needle on the other. It's about 3 inches long. I sadly use that thing every time I knit
, but it sure is handy!