There is a regular crop of litter on the A3M slip lane at junction 1 and one ‘Very Irate Of Murray Road’ took the time to call and raise it as a specific issue. The suspicion is that there is a works van which comes off the slip lane in the evenings, and the days food and drinks packaging are jettisoned to keep the van tidy. I have to say this sounds very likely, and it would be nice to catch the offenders.
If you see them, please let me have a number plate, and I will follow this up with the police who can issue fines.
In the meantime if you ever wish to raise a complaint with the Highways Agency who look after the entire length of the A3 and A3M then their contact details are buried away on their website. here they are so you can raise your concerns with them if you have any: ha_info@highways.gsi.gov.uk and 0300 123 5000
horndeanmatters 
We had noticed that litter at the slip raod and wondered where it had come from. Havant Road suffering from litter as well – individual takeaway food and drink containers discarded once they have been eaten. Unfortunately we have never been able to see anyone drop them