What's your favourite........

I have a stainless steel widger that I use whenever I can find it. The rest of the time, i.e. mostly, I use a stick.

I have a couple of those too - think they were from Wilkos.
As for alternative uses, a  plastic cutlery drainer is very useful for keeping small garden tools in, on your "potting bench". Mine has various dibbers, pencils,markers, seed labels, snips, scissors and a small paint scraper.