I post by 2nd Class in the UK to keep costs low. You can upgrade to 1st Class or even Signed for in the shipping options.
Internationally (Outside of UK) I use International Signed for/Tracked.
Items should arrive within 2 – 3 days in the UK and 5-7 elsewhere. However items have been known to get delayed or lost so please allow 10 Working Days in the UK, 20 Working Days in Europe and 25 Working Days elsewhere from my postage notification for your delivery to arrive. This follows Royal Mail Guidelines. In my experience postage internationally regularly takes considerably longer.
UPGRADING POSTAGE WILL NOT INCREASE PRODUCTION TIMES. IN MOST CASES I NEED TO PRODUCE THE ITEMS TO DISPATCH.
Packages to destinations outside the UK are sent either tracked/signed for or as international standard This depends on the size of the object.