There is a fair-size Intermarche only one junction away round the D338, where it climbs to the roundabout to go towards Alencon. Keep right and use the slip road taking you into LM proper, and turn left at the next set of lights - opposite the Bricoman site, and left again. But, as Smokie says, you're then only a couple of minutes from Auchan, which is much bigger. By the way, Auchan is still having a major rebuild - the South entrance is a huge diversionary mess! Use the new West car park which now has a deck with escalators, or the North, which is easier from the South, if you see what I mean, by taking the last exit from D338 Northbound, as you pass the store itself.
I think I need a drink to understand that!
>Martini...LB