As of next week, you can't pay cash into an account belonging to someone else.  ThaiguyinGlasgow gave me £150 worth of damaged English notes the last time I was in Thailand. Today was the first I managed to get to his bank branch ( not many branches of his bank in Glasgow ). And there I was informed the new rules state bank to bank transfer only. 

I can see the point for larger amounts, but I often stick minor amounts into my kids and grandkids accounts ( £20 say ).  Usually spur of the moment, when I'm in branch, or sometimes an emergency when my student daughter runs short. 

I detest using online banking for minor transactions, it's just as likely to be breached for £20 as £20,000. 

There should be a realistic limit on this, say £500 maximum. 

.....

I have a friend that sells on eBay, he often has people with no bank account putting money direct into his account ( almost always less than £50 ). As of next week, he won't be able to deal with these people. 

A sledgehammer to crack a nut, methinks.