I would totally do it, it's his Mum for goodness sake and 40 miles is less of a distance than my daughter commutes each day. I would also go with them and have a lovely day out spending the money you aren't spending on gifts/drinks etc at the wedding. To use that overworked phrase, Be Kind (to your MiL)
Daniel “Tommo” Thomas charged, no bail.
Has anybody cut down on their meds after reading about over prescribing


