Silbr Lining now sells innovative clothing integrated with solar panels, harnessing sunlight to power your smartphone or MP3 player. 
The GO Solar Power collection includes jackets and pants fitted with compact solar panels. While the output won't heat your home, it reliably recharges mobile phones or MP3 players during outdoor activities.
This clever design has drawbacks: GO Urban Cargo pants retail for $920 (about €700), jackets from $944 to $1,260 (€700–€950). Solar panels aren't machine-washable.