For many parents, it is often hard to find time for shopping among looking after children, cooking meals, working and doing household chores - which is why online shopping and home delivery during the last decade has become so central to modern life.
By doing some research and checking the security of an online retailer families can make some big savings by shopping online instead of on the high street.
For those who live or work in London, the next two weeks will see many working at home due to the Olympics' effect on travel in the capital. For this reason it is also expected to create a rise in online shopping as many take advantage of being able to receive a parcels at home during the day.
However, IMRG expect this increase in online shopping to also put a bigger strain on the transport network due to the larger number of delivery vans on the capital's roads.
In London and the South East 30% of all UK online retail deliveries are made, and it is here, and in Weymouth where the sailing competitions are taking place, that the biggest road restrictions are expected.
Possible effects on home delivery
This means that some delivery options when buying from online retailers may not be available - such as timed deliveries - but there are still ways of making sure that your package is delivered on time during the coming month.
It is important to place your orders as far in advance as possible rather than at the last moment, as some delivery drivers will find it tough to match the number of deliveries they would normally make.
Also, be sure that someone is at home to receive your delivery, as if they are forced to attempt coming back another time they will face a bigger backlog of deliveries, further delaying their work.
It is also helpful to assist the driver by considering your circumstances carefully. This can mean choosing a delivery address outside the busier areas, making sure you will be in, or picking an Alternative Delivery Location that you can walk or drive to outside of restricted hours.
Alternative delivery options
It may be possible to pick up a package from the retailer's local outlet or from a local shop or petrol station that is open for longer hours.
Collect+ is a good example of this, as it makes it possible to pick up packages from some retailers at 4,000 locations, and Hermes Parcelshops has as many as 500 locations.
Other options include Locker Boxes - MyByBox - Shopping centres, train stations or the Post Office's Local Collect service.
It may turn out that parcels are delivered to your address outside normal working hours as drivers attempt to avoid congestion or work through a backlog of deliveries, but to keep track of your order online, be sure to use a 'tracked service' for home delivery.
Just because your house or chosen delivery destination is not inside a restricted area, it does not mean that the local delivery depot will also be in the same position, so be sure to check that location as well.