Ok so I have bought a pair (talking the 60-100 denier thicker opaque types) last week but at around the £9 mark after adding on delivery charges I'm horrified at the cost of maternity tights - even ebay doesn't really have any bargains.
Cue me moaning at work - and a fabulous tip which I have tried today and works well. Make 2 snips on the waistband part of normal tights and they do the job (And haven't fallen down all day!) The tight big doesn't dig in and the rest is stretchy enough to go around the bump!
Probably won't continue to work if (maybe when!) I get really big - but should keep costs down for the next couple of months!
Thought I'd share anyway - may help some other pg ladies 