Practice lap timing- Any clever ideas?

[Maxbashing]

Hi all,

Anyone got any clever suggestions for lap timing when I'm practicing on my own at the track. I have convinced my Mrs to come down once with a stop watch but understandably she thought this was VERY dull.

So I'm wondering has anyone ever found a solution to lap timing on your own? I've found a Stopwatch app which is voice activated which i'm going to try but having read the reviews I don't hold out much hope.

Anyone found a solution to this?