If you are off on a mini break somewhere I recommend the large longchamp bag pictured here. The space is rather large and deep which easily fits your essentials if planning a trip for a couple of nights. Better still you can pack the entire bag as it folds down to a small compact size for when you make those purchases and need another bag to take them home in.
Available here at a reasonable £65: http://uk.longchamp.com/luggage/le-pliage/large-travel-bag-1624089
Fashion Rootle 