Agree wholeheartedly with sleeve about speed control - being trimmed at whatever speed you want to use seriously reduces workload, leaving you with spare capacity for other things. Mainly not getting maxed-out!
I made notes after my failure 2 years ago, and this thread has made me dig them out again. I noted that I remembered looking at the ASI only twice and both times it said 70kt. After the second time I felt I speed wasn't a problem - but that's only because (I assume) I got the thing properly in trim. didn't look at the ASI again.
Also, I forgot to switch off fuel; mags; master. I forgot to tighten my harness; I forgot to jettison the canopy side panels. Caught up in the moment I suppose but could have had nasty consequences if the sand hadn't been firm. Only 50 sec from failure to being on the beach, so things happened quickly. Live and learn