Shopping en route back from Alps

Starting a thread to recommend places to stop to shop and refuel en route back from the Alps. You know, the usual beer, fizzy, cheese, coffee & filters (why so cheap in France compared to here?) etc.

REIMS A4/A26 Jct. 23 E.Leclerc

Road/Jct.: Reims A4 (Autotoute de l'Est) / A26 (Autoroute des Anglais)
Exit: Jct.23 (Épernay/Reims-Sud)
Distance from Autoroute: 1.2Kms
SatNav: Longitude: 4.011319 / Latitude: 49.2033
Address: Route Nationale 51, 51500 Champfleury
Website: http://www.e-leclerc.com/champfleury
Fuel Prices: Sans plomb 98: €1.417 - SP 95 E10: €1.335 - Gazole: €1.231 - E85: €0.599
To Calais: 280 Kms (approx 2h30m)
Hours: 08:30-20:30, Wednesday 14:00-20:30, Closed Sundays

Right next to the autotoute exit, this is very easy to get to with lots of parking. You can see it easily from the autoroute on the left. Usually has some good offers on wine and beers and cheap fuel. Just be alert at the exit roundabout as it's easy to take the Reims exit instead of the Autotoute exit from the parking. The Petrol station is separated into two sections for cards-only (left) and cash/cards (right). We've swapped to shopping here as opposed to our previous supermarket at St.Quinten Nord as this is even closer to the autoroute and the car park is less congested.