Amazon has the Renogy Phoenix Portable Solar Generator (PHOENIX) for $399 with free shipping. List price: $700. Features replaceable battery and an LCD readout, can expand up to 120 watts with additional PVs.
Has excellent Amazon Reviews.
Walmart has the Woods 25ft Extension Cord Reel w/ 4-Outlets (4907) for $15.47 with free in-store pickup or $5.99 shipping to home. Comes with a 10-amp circuit breaker, power indicator light and (4) grounded outlets.