Unfortunately it will be this Saturday, so I don't think Central London is feasible with Live8 going on.
DH and DSis are going to the concert, but I've dipped out and am taking my little DSis to the airport. I was going to be going myself, but now I've realised how long it will be going on for, I don't think it will be fair to leave my DS for that long randomly traipsing round with my sisters
So we'll have to do a fair bit of retail therapy to cheer ourselves up
We've been to the Oracle before, but never shopping, just to the cinema. It's Bluewater that's got an Ikea nearby though isn't it? Where is Lakeside?
Sorry to put a dampner on Brent Cross but that is in North London and Heathrow is West - won't it be a nightmare to get from one to the other on a Saturday?
Windsor has lots of lovely shops but not in a mall as such. There is a big mall in Uxbridge but it is not a very exciting one. There is a retail park at Kew (Mothercare, M&S, Gap, Boots). Big mall at Ealing Broadway too.
All those towns are probably (traffic permitting) within 20 mins of Heathrow.
Agree with Bugsy - would be very slow traffic getting from Heathrow to Brent X on Sat afternoon. Especially as everyone's going to be driving round the North and South Circulars to avoid going through C London.
Uxbridge and Hounslow are the closest. Neither are particularly inspiring but they have all the high street shops plus a few local ones, and you can kill a few hours without stressing in a hot car. Watch out for the low-flying Jumbos over Hounslow - they used to terrify me.
Ealing's nice too - lots of cafe bars to cool off in after a hot afternoon of retail therapy.
There aren't any huge shopping malls near Heathrow. But there are decent shopping towns where you can do a bit of shopping and eating - Windsor is the obvious choice, but Staines, Slough, and I'm sure other places, can keep you going for several hours.