But official guidance has now been released which states where floral tributes at key locations across the UK can be left.
Here’s what you need to know.
Where can I leave floral tributes to the Queen?
During the time of National Mourning, the Government and the Royal Household have requested that no official flowers, wreaths, or tributes be sent from organisations to the location of the State Funeral, Royal Residences or government offices.
However, within your local community there may be a place, such as a town hall or place of worship, where members of the public can lay flowers or tributes in memory of Her Majesty.
You are advised to check the website of your local authority, or local media for further information.
The guidance states that in all locations, you should follow the advice and direction of stewards.
The following places have specified locations where flowers can be laid:
London - A memorial flower garden will be created in Green Park and will be the main place for laying flowers near Buckingham Palace.
Windsor - Flowers can be laid on the Long Walk at Cambridge Gate close to the town centre. You can read further information on the Royal Borough of Windsor and Maidenhead website.
Sandringham - Flowers can be laid on the estate and visitors will be directed to the correct location on arrival.
Belfast - Flowers can be laid at Hillsborough Castle. You can read further information on the Northern Ireland Office website.
Edinburgh - Flowers can be laid at the Palace of Holyroodhouse. You can read further information on the Scottish Government website.
Balmoral - Flowers can be laid at the Main Gate to the Castle. You can read further information on the Balmoral Castle website.
Cardiff - Flowers can be laid at the areas either side of the City Hall entrance. You can read further information on the Welsh Government website.
What about other tributes?
The official guidance said: “Making a donation to one of Her Majesty’s many charities and patronages may be considered a fitting way of paying tribute to Her extraordinary legacy.”
What about Books of Condolence?
There are no physical books of condolence at Royal Residences, but you can sign an online Book of Condolence on the Royal family website.
There will also be opportunities to sign Books of Condolence at various town halls and other locations throughout the UK. You will need to check with your local authority about this.
Any organisation or person may also open a Book of Condolence during the period of National Mourning.
There is no set format for a Book of Condolence, but the official guidance said the layout of the table is usually a trestle table on which the book is placed with a white tablecloth, an arrangement of flowers (usually lilies or other white flowers) and a framed formal photograph of Her Majesty.
The photograph could be an official portrait photograph, or one taken at a previous Royal visit.
As a mark of respect, a black ribbon could also be wrapped around the top right hand corner.
However, it’s worth noting that the Royal Household and the Government will not be able to receive books of condolence.