a couple of tips about lifelines...
- Because your moving your knitting constantly, make sure your lifelines stick out about a foot on either side of your knitting, this way if you stretch it out, they aren't going to fall out
- When putting in your lifelines, don't feed them through your stitch markers if you are using them in your lace pattern.
- leave a couple in, just in case you don't notice your mistake in your last lace repeat until after you have put your latest lifeline in.
- Use a contrasting color for your lifeline, this way you don't accidentally use your lifeline to knit with.