I've never been able to bring myself to use them. I just feel like it would be saying (to the flab) OK - you win.
I think I'd rather not wear really close fitting stuff until I've managed to get my arse to the gym again.
I realise this may condemn me to a life of baggy clothing though.
But at least by not using them (and giving myself a false sense of thin-ness) I still have a 'motive' don't I...?
Or is it just me?