Yes bit of a glut here too... seems to be earlier than usual?
Plan to make a batch (or two or three....

) of sponge cake bases, then freeze separately and can knock up a cake in no-time in the middle of summer when really no time to bake...
Recipe.:
175g self-raising flour, 175g of butter (or marg if you are so inclined - we are not) and 175g of caster sugar, then three eggs, plus a teaspoon of baking powder all whizzed up and baked in lined sponge cake tins (this recipe does two tins, but I often calculate it upwards to four tins) and baked at 190deg for about 20mins.
Preparation time is usually about 5 to 10mins...