Jessica & Vanessa Shop it Out

7/15/2008 4:42 PM PDT BY TMZ STAFF
Clean up in aisle ... Lachey!

Nick Lachey's ex-wife Jessica Simpson and his current gf Vanessa Minnillo battled it out at different Ralphs supermarkets to see who had the most baggage.

Vanessa had two carts filled with crap -- to Simpson's one. Nick's gonna have his hands full.