Well, i thought since lots of people have been looking for 'the' anchor to fit them, we could list a bunch of anchors. Be creative! It can involve visualization techs. Anything at all; as vague or detailed as you want.

Ill get the obvious ones out of the way...

1. counting
2. watching the back of your eyelids
3. mantras
4. the felling of the bed pressing on you

continue...

P.S. you might have noticed the similarity to the 1000 things to do in a lucid dream thread. That was the inspiration.