Too many to list. A couple in no particular order.
- Forgot the bathinov mask on 20min subs in ha then went to bed.
- Swapped RA and DEC cable (fast drift in RA x1).
- Aligned the whole mount to the north at coonabarabran ( very fast drift in RA x2)
- Forgot counterweight shaft after a drive to Ilford (250km).
- Went to Crago withouth the tripod as my kid points out while driving in the field (40km).