Things that are good value from pound shops
- Flexible filling blades
- Paint rollers and trays
- Vinyl bike covers
- IPhone cables. (Generic micro USB cables are available cheaply elsewhere though, so I wouldn't get those from a pound shop personally).
- Travel power adapters
- Tent peg mallets
- Superglue - but be warned, the packaging is so crap that if you don't use a tube in one go, it'll have all dried before the next time you want to use it. Also be aware that sometimes the packaging will be duff and you'll go to use a brand new tube and find that it's already dried. But when it's ~10 tubes for £1, you can't really complain too badly...
- Car sponges
- Teflon baking tray liners
- GU10 Halogen bulbs (though (a) make sure you get the twin packs and (b) you really ought to be upgrading those to LED bulbs by now).
- Sandpaper
- Tools that need to be manufactured accurately to be useful - allen keys, spanners, screwdrivers etc.. Stuff like hammers are probably okay (though I've not bought a pound shop hammer before).
- Tent pegs
- Sanding blocks