Sending you my warmest wishes Morghew70 in your time of loss. Please just take your time, as others have said. I lost my dad 7 weeks ago and I gave 2 weeks notice on his flat. Due to me getting really ill after the funeral, I couldn't go and clear it out so my son went and got the Virgin box I thought we would have to give back and I left it at that for the residents of his sheltered housing friends to share out. Now, I wish I had given 4 weeks notice and had time to go through things a bit more thoroughly and kept some of his things. I did get his watch, not expensive but sentimental and his paperwork.
Sometimes, when you are still in the grip of shock, you may decide to give something away which you may later regret. Let things settle. Only do it when you are good and ready, with or without help, it's up to you. Grief takes a while to get through and there is no time limit, as shown above. My dad's things are put away at the moment, even his ashes, so that I can come to terms with it before I decide what to do for the best. Take care and look after yourself.