I'm not so good on the ideas/creative front to be honest Mark, even my wife asks me why I can't make things that aren't round
:lol:
Just to demonstrate my lack of imagination the only things I can think to suggest are to make sure you have a couple of decent chopping/bread boards as they do look great and will get used every day !
Other than that then I guess you're into furniture of different types, small cabinets, tables, jewelry boxes, clocks etc depending on level of experience and kit available ?
For these other uses the timber will need to be well seasoned before use, and you could cut into a range of sizes to season and that you are likely to use and/or can further reduce later, perhaps 1", 2" and 3" thick planks, kept as wide and as long as possible in the first instance ? If in doubt keep it all as big and as long as possible, but try and isolate any pith to minimise splitting.
Don't cut it too thin as it will warp/twist when drying out and you will likely need to remove a fair bit of timber later to get it flat again to use. Stacking any cut planks with untreated softwood spacers around 1" square cross section, every 18" or 24" or so to allow the air to circulate and dry them out, and put some heavy'ish weights of some sort on top of the top plank to help prevent the stacked pile distorting as it dries. End grain needs sealing as well of course.
Then you don't have to worry about what to make just yet as it will likely be two to three years before most of it is ready to use ! :lol:
Look forwards to helping out a bit next week or two once you are ready and if it still suits.
Cheers, Paul