The following link is for cheat sheets for all kinds of computer use. Especially useful is the Google search cheat sheet.
I thought you’d like this:
MakeUseOf Cheat Sheets
Two tips from members of GenealogyWise:
1) Hold down the control key and hit the + key (plus key.) to make type larger. To make smaller again, do the same but use the – key (minus key). The shift key is not needed to do this.
2) Hold down the control key and use the scroll wheel on your mouse. Scroll forward for larger type and backward for smaller type.