I completed the task before it got dark using own litter picker and bag opener - took this along to do local shopping and plogged en route. Sainsbury's Local Manager happy for me to leave bag and equipment tucked away safely in store while I did my shopping - double mission accomplished!

Edit: Rachel got out and about and Emily grabbed a couple of bags of litter as well. We all benefitted from the fresh air and DIY task at this time of year.