Usually have to buy mine on the High Street when I can. Lingerie - John Lewis, M&S. BHS also have some interesting stuff sometimes & not very expensive. Tights/Stockings- John Lewis, House of Fraser.
I have a fatal weakness for expensive hosiery.
Recently had a rare high speed shopping trip to Oxford St in London. Discovered Selfridges have the biggest Hosiery section I've ever seen since the 80's. Didn't fancy spending £50 on 2 pairs of tights even though the choice in there was mind boggling. No FF stockings though which was surprising. Seems you can only get those on the net ('scuse the many puns).
Also had a look around Agent Provocateur. Black floor, black walls, black ceiling, black merchandise- couldn't find a damn thing.
Ended up buying a really nice bodyshaper from BHS for £16, & a shed load of tights & some stockings from John Lewis & House of Fraser.
Think I'm going to have to re-activate my PO Box number to do some internet shopping sometime soon.
I only smile if I have a reason...